docs: Update uninstall command to reflect multiple extension support

[JayadityaGit]

Summary

Updates the uninstall command documentation to reflect the new support for uninstalling multiple extensions at once in the Gemini CLI. This improves accuracy and helps users understand the updated behavior.

Details

• Replaced the old single-extension uninstall example with a multi-extension example.
• Clarified wording to indicate that users can uninstall one or more extensions.
• Updated example command to include multiple extension names.

How to Validate

1. Open the documentation page: docs/extensions/index.md.

2. Scroll to the Uninstalling an extension section.

3. Confirm:

   • The text now states you can uninstall “one or more” extensions.
   • The command example shows multiple extensions (e.g., gemini extensions uninstall gemini-cli-security gemini-cli-another-extension).

4. Verify that the updated command accurately reflects the current CLI behavior.

Pre-Merge Checklist

• Updated relevant documentation

• Added/updated tests (not required for docs-only change)

• Noted breaking changes (none)

• Validated manually on:

  • MacOS

    • npm run
    • npx
    • Docker
    • Podman
    • Seatbelt

  • Windows

    • npm run
    • npx
    • Docker

  • Linux

    • npm run
    • npx
    • Docker

[gemini-code-assist]

Summary of Changes

Hello @JayadityaGit, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request updates the documentation for the gemini extensions uninstall command in the Gemini CLI. The changes accurately reflect the recently added capability to uninstall multiple extensions simultaneously, ensuring users have up-to-date information on the command's functionality and improving clarity for its usage.

Highlights

• Documentation Update: The documentation for the gemini extensions uninstall command has been updated.
• Multiple Extension Support: The documentation now accurately reflects the Gemini CLI's support for uninstalling multiple extensions simultaneously.
• Wording Clarification: The text clarifies that users can uninstall 'one or more' extensions.
• Updated Example: The example command now demonstrates how to uninstall multiple extensions at once.

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[gemini-code-assist]

Code Review

This pull request updates the documentation for the gemini extensions uninstall command to reflect its new capability of uninstalling multiple extensions at once. The changes in docs/extensions/index.md correctly modify the description and the example command to show this new usage. The update is clear, accurate, and improves user understanding of the command's behavior. The changes look good.