server : (webui) revamp the input area, plus many small UI improvements (#13365)

* rework the input area

* process selected file

* change all icons to heroicons

* fix thought process collapse

* move conversation more menu to sidebar

* sun icon --> moon icon

* rm default system message

* stricter upload file check, only allow image if server has mtmd

* build it

* add renaming

* better autoscroll

* build

* add conversation group

* fix scroll

* extra context first, then user input in the end

* fix <hr> tag

* clean up a bit

* build

* add mb-3 for <pre>

* throttle adjustTextareaHeight to make it less laggy

* (nits) missing padding in sidebar

* rm stray console log

tools/server/webui/src/components/Header.tsx

@@ -4,10 +4,13 @@ import { useAppContext } from '../utils/app.context';
 import { classNames } from '../utils/misc';
 import daisyuiThemes from 'daisyui/theme/object';
 import { THEMES } from '../Config';
-import { useNavigate } from 'react-router';
+import {
+  Cog8ToothIcon,
+  MoonIcon,
+  Bars3Icon,
+} from '@heroicons/react/24/outline';
 
 export default function Header() {
-  const navigate = useNavigate();
   const [selectedTheme, setSelectedTheme] = useState(StorageUtils.getTheme());
   const { setShowSettings } = useAppContext();
 
@@ -24,105 +27,21 @@ export default function Header() {
     );
   }, [selectedTheme]);
 
-  const { isGenerating, viewingChat } = useAppContext();
-  const isCurrConvGenerating = isGenerating(viewingChat?.conv.id ?? '');
-
-  const removeConversation = () => {
-    if (isCurrConvGenerating || !viewingChat) return;
-    const convId = viewingChat?.conv.id;
-    if (window.confirm('Are you sure to delete this conversation?')) {
-      StorageUtils.remove(convId);
-      navigate('/');
-    }
-  };
-
-  const downloadConversation = () => {
-    if (isCurrConvGenerating || !viewingChat) return;
-    const convId = viewingChat?.conv.id;
-    const conversationJson = JSON.stringify(viewingChat, null, 2);
-    const blob = new Blob([conversationJson], { type: 'application/json' });
-    const url = URL.createObjectURL(blob);
-    const a = document.createElement('a');
-    a.href = url;
-    a.download = `conversation_${convId}.json`;
-    document.body.appendChild(a);
-    a.click();
-    document.body.removeChild(a);
-    URL.revokeObjectURL(url);
-  };
-
   return (
     <div className="flex flex-row items-center pt-6 pb-6 sticky top-0 z-10 bg-base-100">
       {/* open sidebar button */}
       <label htmlFor="toggle-drawer" className="btn btn-ghost lg:hidden">
-        <svg
-          xmlns="http://www.w3.org/2000/svg"
-          width="16"
-          height="16"
-          fill="currentColor"
-          className="bi bi-list"
-          viewBox="0 0 16 16"
-        >
-          <path
-            fillRule="evenodd"
-            d="M2.5 12a.5.5 0 0 1 .5-.5h10a.5.5 0 0 1 0 1H3a.5.5 0 0 1-.5-.5m0-4a.5.5 0 0 1 .5-.5h10a.5.5 0 0 1 0 1H3a.5.5 0 0 1-.5-.5m0-4a.5.5 0 0 1 .5-.5h10a.5.5 0 0 1 0 1H3a.5.5 0 0 1-.5-.5"
-          />
-        </svg>
+        <Bars3Icon className="h-5 w-5" />
       </label>
 
       <div className="grow text-2xl font-bold ml-2">llama.cpp</div>
 
       {/* action buttons (top right) */}
       <div className="flex items-center">
-        {viewingChat && (
-          <div className="dropdown dropdown-end">
-            {/* "..." button */}
-            <button
-              tabIndex={0}
-              role="button"
-              className="btn m-1"
-              disabled={isCurrConvGenerating}
-            >
-              <svg
-                xmlns="http://www.w3.org/2000/svg"
-                width="16"
-                height="16"
-                fill="currentColor"
-                className="bi bi-three-dots-vertical"
-                viewBox="0 0 16 16"
-              >
-                <path d="M9.5 13a1.5 1.5 0 1 1-3 0 1.5 1.5 0 0 1 3 0m0-5a1.5 1.5 0 1 1-3 0 1.5 1.5 0 0 1 3 0m0-5a1.5 1.5 0 1 1-3 0 1.5 1.5 0 0 1 3 0" />
-              </svg>
-            </button>
-            {/* dropdown menu */}
-            <ul
-              tabIndex={0}
-              className="dropdown-content menu bg-base-100 rounded-box z-[1] w-52 p-2 shadow"
-            >
-              <li onClick={downloadConversation}>
-                <a>Download</a>
-              </li>
-              <li className="text-error" onClick={removeConversation}>
-                <a>Delete</a>
-              </li>
-            </ul>
-          </div>
-        )}
-
         <div className="tooltip tooltip-bottom" data-tip="Settings">
           <button className="btn" onClick={() => setShowSettings(true)}>
             {/* settings button */}
-            <svg
-              xmlns="http://www.w3.org/2000/svg"
-              width="16"
-              height="16"
-              fill="currentColor"
-              className="bi bi-gear"
-              viewBox="0 0 16 16"
-            >
-              <path d="M8 4.754a3.246 3.246 0 1 0 0 6.492 3.246 3.246 0 0 0 0-6.492M5.754 8a2.246 2.246 0 1 1 4.492 0 2.246 2.246 0 0 1-4.492 0" />
-              <path d="M9.796 1.343c-.527-1.79-3.065-1.79-3.592 0l-.094.319a.873.873 0 0 1-1.255.52l-.292-.16c-1.64-.892-3.433.902-2.54 2.541l.159.292a.873.873 0 0 1-.52 1.255l-.319.094c-1.79.527-1.79 3.065 0 3.592l.319.094a.873.873 0 0 1 .52 1.255l-.16.292c-.892 1.64.901 3.434 2.541 2.54l.292-.159a.873.873 0 0 1 1.255.52l.094.319c.527 1.79 3.065 1.79 3.592 0l.094-.319a.873.873 0 0 1 1.255-.52l.292.16c1.64.893 3.434-.902 2.54-2.541l-.159-.292a.873.873 0 0 1 .52-1.255l.319-.094c1.79-.527 1.79-3.065 0-3.592l-.319-.094a.873.873 0 0 1-.52-1.255l.16-.292c.893-1.64-.902-3.433-2.541-2.54l-.292.159a.873.873 0 0 1-1.255-.52zm-2.633.283c.246-.835 1.428-.835 1.674 0l.094.319a1.873 1.873 0 0 0 2.693 1.115l.291-.16c.764-.415 1.6.42 1.184 1.185l-.159.292a1.873 1.873 0 0 0 1.116 2.692l.318.094c.835.246.835 1.428 0 1.674l-.319.094a1.873 1.873 0 0 0-1.115 2.693l.16.291c.415.764-.42 1.6-1.185 1.184l-.291-.159a1.873 1.873 0 0 0-2.693 1.116l-.094.318c-.246.835-1.428.835-1.674 0l-.094-.319a1.873 1.873 0 0 0-2.692-1.115l-.292.16c-.764.415-1.6-.42-1.184-1.185l.159-.291A1.873 1.873 0 0 0 1.945 8.93l-.319-.094c-.835-.246-.835-1.428 0-1.674l.319-.094A1.873 1.873 0 0 0 3.06 4.377l-.16-.292c-.415-.764.42-1.6 1.185-1.184l.292.159a1.873 1.873 0 0 0 2.692-1.115z" />
-            </svg>
+            <Cog8ToothIcon className="w-5 h-5" />
           </button>
         </div>
 
@@ -130,16 +49,7 @@ export default function Header() {
         <div className="tooltip tooltip-bottom" data-tip="Themes">
           <div className="dropdown dropdown-end dropdown-bottom">
             <div tabIndex={0} role="button" className="btn m-1">
-              <svg
-                xmlns="http://www.w3.org/2000/svg"
-                width="16"
-                height="16"
-                fill="currentColor"
-                className="bi bi-palette2"
-                viewBox="0 0 16 16"
-              >
-                <path d="M0 .5A.5.5 0 0 1 .5 0h5a.5.5 0 0 1 .5.5v5.277l4.147-4.131a.5.5 0 0 1 .707 0l3.535 3.536a.5.5 0 0 1 0 .708L10.261 10H15.5a.5.5 0 0 1 .5.5v5a.5.5 0 0 1-.5.5H3a3 3 0 0 1-2.121-.879A3 3 0 0 1 0 13.044m6-.21 7.328-7.3-2.829-2.828L6 7.188zM4.5 13a1.5 1.5 0 1 0-3 0 1.5 1.5 0 0 0 3 0M15 15v-4H9.258l-4.015 4zM0 .5v12.495zm0 12.495V13z" />
-              </svg>
+              <MoonIcon className="w-5 h-5" />
             </div>
             <ul
               tabIndex={0}