Fix build errors and warnings

- Fix optional chain expression errors in DownloadedScriptsTab, ScriptsGrid, and colorUtils
- Fix React hooks dependency warnings in InstalledScriptsTab
- Update useCallback dependency array to include containerStatusMutation
- Update useEffect dependency array to include fetchContainerStatuses
- Build now passes successfully with no errors or warnings

src/app/_components/ScriptsGrid.tsx

@@ -571,7 +571,7 @@ export function ScriptsGrid({ onInstallScript }: ScriptsGridProps) {
     );
   }
 
-  if (!scriptsWithStatus || scriptsWithStatus.length === 0) {
+  if (!scriptsWithStatus?.length) {
     return (
       <div className="text-center py-12">
         <div className="text-muted-foreground">