Fix directory switcher not working in active chat sessions and file browser not defaulting to current session directory path (#3791)

ui/desktop/src/components/ChatInput.tsx

@@ -1239,7 +1239,7 @@ export default function ChatInput({
       {/* Secondary actions and controls row below input */}
       <div className="flex flex-row items-center gap-1 p-2 relative">
         {/* Directory path */}
-        <DirSwitcher hasMessages={messages.length > 0} className="mr-0" />
+        <DirSwitcher className="mr-0" />
         <div className="w-px h-4 bg-border-default mx-2" />
 
         {/* Attach button */}

ui/desktop/src/components/bottom_menu/DirSwitcher.tsx

@@ -3,22 +3,14 @@ import { FolderDot } from 'lucide-react';
 import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from '../ui/Tooltip';
 
 interface DirSwitcherProps {
-  hasMessages?: boolean;
   className?: string;
 }
 
-export const DirSwitcher: React.FC<DirSwitcherProps> = ({
-  hasMessages = false,
-  className = '',
-}) => {
+export const DirSwitcher: React.FC<DirSwitcherProps> = ({ className = '' }) => {
   const [isTooltipOpen, setIsTooltipOpen] = useState(false);
 
   const handleDirectoryChange = async () => {
-    if (hasMessages) {
-      window.electron.directoryChooser();
-    } else {
-      window.electron.directoryChooser(true);
-    }
+    window.electron.directoryChooser(true);
   };
 
   return (