Store the user in localStorage

frontend/src/ui/components/chat/LeftPanel.tsx

@@ -12,6 +12,11 @@ import type { ChatTabs } from "../../state";
 
 function BottomAppBar() {
     const [settingsOpen, onSettingsOpenChange] = useState(false);
+    const { logout } = useAppState();
+
+    const handleLogout = () => {
+        logout();
+    };
 
     return (
         <>
@@ -19,6 +24,12 @@ function BottomAppBar() {
                 <mdui-button-icon icon="settings--filled" id="settings-open" onClick={() => onSettingsOpenChange(true)}></mdui-button-icon>
                 <mdui-button-icon icon="group_add--filled"></mdui-button-icon>
                 <div style={{ flexGrow: 1 }}></div>
+                <mdui-button-icon 
+                    icon="logout--filled" 
+                    id="logout-btn" 
+                    onClick={handleLogout}
+                    title="Выйти"
+                ></mdui-button-icon>
                 <mdui-fab icon="edit--filled"></mdui-fab>
             </mdui-bottom-app-bar>
             <SettingsDialog isOpen={settingsOpen} onOpenChange={onSettingsOpenChange} />