🐛 Fix: Docs button in create sites repositories section #2300

[AryanBagade]

What does this PR do?

This PR fixes a broken "Docs" button in the Sites creation flow. The button in the "Missing a repository?" section had href="#" which created a broken link that didn't navigate anywhere.

Changes made:

• Updated the docs button to link to the correct GitHub App configuration documentation
• Added external prop to both docs and GitHub buttons for security and UX best practices
• The link now points to: https://appwrite.io/docs/advanced/self-hosting/sites#configure-github-app

This specifically addresses the scenario described in the tooltip - helping users configure GitHub App permissions when repositories are missing.

Test Plan

Manual Testing:

1. Navigate to Sites → Create Site → Connect a repository
2. Look at the right sidebar "Missing a repository?" section
3. Click the "Docs" button - now opens the correct documentation in a new tab
4. Click the "Go to GitHub" button - also opens in new tab with proper security attributes

Automated Testing:

• ✅ All tests pass: 211/211 tests successful
• ✅ No linting errors: 0 errors, 0 warnings
• ✅ Code formatting: Applied with pnpm run format
• ✅ Diagnostics: Passed pnpm run check with no issues

Code Quality:

• Follows existing code conventions
• Added proper external prop for security (target="_blank" + rel="noopener noreferrer")
• Maintains consistent styling and structure

Related PRs and Issues

• Fixes appwrite/appwrite#2300 (Console repo issue)
• References appwrite/console#2356 (Original issue reported in main repo)

This is a cross-repo fix - the issue was originally reported in the main appwrite repo but the fix belongs in the console frontend repo.

Have you read the Contributing Guidelines on issues?

Yes, I have read and followed the Contributing Guidelines:

• ✅ Followed proper branch naming convention: fix-docs-button-create-sites
• ✅ Ran all required checks: format, tests, and diagnostics
• ✅ Used proper commit message format with issue references
• ✅ Created corresponding issue in console repo before submitting PR
• ✅ Followed code quality standards and existing patterns
• ✅ Added proper security attributes for external links

Closes appwrite/appwrite#2300

Summary by CodeRabbit

• New Features
  • Docs and Go to GitHub buttons now open externally, improving navigation and preventing context loss during site setup.
• Documentation
  • Updated the Docs button to link directly to the self-hosting Sites configuration guide, replacing the placeholder link for clearer guidance.
  • Ensures users can quickly access the correct external resources without leaving the wizard unintentionally.