remove desktop help modal

frontend/src/app/AppLayout.jsx

@@ -31,8 +31,6 @@ const AppLayout = () => {
     onToggleSearchIncludeDescendants: documentsPreferences.toggleSearchIncludeDescendants,
     onSetSearchIncludeDescendants: documentsPreferences.setSearchIncludeDescendants,
     sortRefreshReadyRef: documentsPreferences.sortRefreshReadyRef,
-    deskHelpOpen: documentsPreferences.deskHelpOpen,
-    setDeskHelpOpen: documentsPreferences.setDeskHelpOpen,
     handleDeskExit: documentsPreferences.handleDeskExit,
   });
 

frontend/src/app/useDocumentsPreferences.js

@@ -42,17 +42,8 @@ export const useDocumentsPreferences = () => {
     return 'list';
   });
 
-  const [deskHelpOpen, setDeskHelpOpen] = useState(false);
   const lastNonDeskViewRef = useRef(documentsViewMode === 'desk' ? 'list' : documentsViewMode);
 
-  useEffect(() => {
-    if (documentsViewMode !== 'desk') {
-      lastNonDeskViewRef.current = documentsViewMode;
-    } else if (deskHelpOpen) {
-      setDeskHelpOpen(false);
-    }
-  }, [documentsViewMode, deskHelpOpen]);
-
   const setDocumentsViewMode = useCallback((mode) => {
     const next = mode === 'grid' ? 'grid' : mode === 'desk' ? 'desk' : 'list';
     setDocumentsViewModeState((previous) => {
@@ -122,8 +113,6 @@ export const useDocumentsPreferences = () => {
     documentsViewMode,
     handleDocumentsViewModeChange: setDocumentsViewMode,
     handleDeskExit,
-    deskHelpOpen,
-    setDeskHelpOpen,
     documentsSortField,
     documentsSortDirection,
     documentsSortFieldRef,