Document Message Reactions API from teams.net#335

[Copilot]

Documentation Updates for Reaction API

Based on PR microsoft/teams.net#335, this PR documents the new Reaction API functionality across C#, TypeScript, and Python SDKs.

Summary of Changes

New Documentation Page:

• Created message-reactions.mdx in the in-depth-guides section
• Includes comprehensive sections on:
  • Adding reactions to messages
  • Removing reactions from messages
  • Available reaction types (like, heart, checkmark, hourglass, pushpin, exclamation, laugh, surprise, sad, angry)
  • Custom emoji reactions support
  • Advanced usage scenarios
  • Best practices
  • Clear distinction from Feedback feature

Updated API Client Documentation:

• Updated the API table in all three language variants
• Added mention of the Reactions API under the Conversations section

Language-Specific Examples:

• C#: Examples using ReactionClient.AddAsync() and ReactionClient.DeleteAsync() with ReactionType enum
• TypeScript: Examples using api.conversations.reactions.add() and api.conversations.reactions.delete() with string reaction types
• Python: Examples using api.conversations.reactions.add() and api.conversations.reactions.delete() with string reaction types

CI Fix

Reverted prettier formatting changes to 6 files that had MDX syntax errors:

• user-authentication/typescript.incl.md - Prettier indented </TabItem> tags inside list items, causing MDX parser errors
• user-authentication/python.incl.md - Same issue
• slack-bolt/typescript.incl.md - Prettier changed code fence from 3 to 4 backticks, breaking MDX
• the-api-client/csharp.incl.md - MDX syntax errors from formatting
• the-api-client/python.incl.md - MDX syntax errors from formatting
• the-api-client/typescript.incl.md - MDX syntax errors from formatting

These files had pre-existing formatting issues that became worse when prettier tried to fix them. MDX is very sensitive to indentation changes.

Progress

• Review PR Update samples README.md #335 changes to understand full scope
• Create new "Message Reactions" documentation page
  • Add to in-depth-guides section
  • Document the new ReactionClient API
  • Show how to add reactions to messages
  • Show how to remove reactions from messages
  • Document available reaction types
• Update API Client documentation
  • Add Reactions to the API table for all languages
• Create language-specific include files
  • C# examples using ReactionClient
  • TypeScript examples
  • Python examples
• Apply prettier formatting
• Build and validate documentation
• Fix CI build errors
• Request code review (no issues found)
• Run security checks

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[rido-min]

@copilot fix the errors in CI

[Copilot]

@copilot fix the errors in CI

Fixed in commit 815acfd. The build errors were caused by prettier adding indentation to MDX closing tags and code fences in 6 files, which broke the MDX parser. I've reverted those files to their original state, and the build now passes successfully.

[rido-min]

this PR (from copilot) touched multiple files. Closing in favor of #2718