Add keyboard shortcuts for repository file and code search (#36416)

Resolves #36417: Add GitHub-like keyboard shortcuts for repository
navigation:
- Press `T` to focus the "Go to file" search input
- Press `S` to focus the "Search code" input
- Press `Escape` to clear and unfocus search inputs

---------

Signed-off-by: Micah Kepe <micahkepe@gmail.com>
Signed-off-by: silverwind <me@silverwind.io>
Signed-off-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

eslint.config.ts

@@ -961,6 +961,7 @@ export default defineConfig([
       'vitest/no-interpolation-in-snapshots': [0],
       'vitest/no-large-snapshots': [0],
       'vitest/no-mocks-import': [0],
+      'vitest/no-importing-vitest-globals': [2],
       'vitest/no-restricted-matchers': [0],
       'vitest/no-restricted-vi-methods': [0],
       'vitest/no-standalone-expect': [0],