fix: resolve eslint errors and apply formatting to match shared config

Auto-fix import ordering, quote style, and indentation via eslint --fix
and prettier --write. Remove unused variable in NodesPage and PodsPage.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/index.tsx

@@ -180,4 +180,3 @@ registerResourceTableColumnsProcessor(({ id, columns }) => {
   }
   return columns;
 });
-