feat: update /bug command to point to Qwen-Code repo (#154)

This commit updates the /bug command to point to the Qwen-Code
repository instead of the Gemini CLI repository.

The following files were modified:

- `packages/cli/src/ui/hooks/slashCommandProcessor.ts`: Updated the URL
  for the /bug command.
- `packages/cli/src/ui/hooks/slashCommandProcessor.test.ts`: Updated the
  test for the /bug command to reflect the new URL.
- `docs/cli/commands.md`: Updated the documentation for the /bug
  command and replaced all instances of "Gemini CLI" with "Qwen Code".

packages/cli/src/ui/hooks/slashCommandProcessor.test.ts

@@ -554,7 +554,7 @@ describe('useSlashCommandProcessor', () => {
 *   **Memory Usage:** ${memoryUsage}
 `;
       let url =
-        'https://github.com/google-gemini/gemini-cli/issues/new?template=bug_report.yml';
+        'https://github.com/QwenLM/Qwen-Code/issues/new?template=bug_report.yml';
       if (description) {
         url += `&title=${encodeURIComponent(description)}`;
       }