[Glitch] refactor: Disable useDrag hook when main menu is not openable

Port a842b14c84 to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/features/navigation_panel/index.tsx

@@ -466,6 +466,7 @@ export const CollapsibleNavigationPanel: React.FC = () => {
       filterTaps: true,
       bounds: isLtrDir ? { left: 0 } : { right: 0 },
       rubberband: true,
+      enabled: openable,
     },
   );