Enhances 'teams chat message send' with contentType

[milanholemans]

Closes #6483

[Copilot]

Pull request overview

This PR enhances the teams chat message send command by adding support for specifying the content type of chat messages. Users can now send messages as either plain text or HTML formatted content.

• Adds a new optional --contentType parameter accepting 'text' or 'html' values
• Updates telemetry tracking to include the contentType option
• Refactors test setup to eliminate duplicate stub configurations

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
src/m365/teams/commands/chat/chat-message-send.ts	Adds contentType option with validation, imports Auth class, modifies API request to include contentType in body, and updates access token retrieval
src/m365/teams/commands/chat/chat-message-send.spec.ts	Consolidates test setup by moving prompt setting stub to before hook, adds validation test for invalid contentType, adds test for HTML content type functionality
src/m365/teams/commands/chat/chatUtil.ts	Fixes spacing in comment documentation (emailaddresses → email addresses)
docs/docs/cmd/teams/chat/chat-message-send.mdx	Adds contentType option documentation, includes permissions table with delegated and application permission details, updates example to demonstrate HTML content type usage

[Copilot]

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated no new comments.

Comments suppressed due to low confidence (1)

src/m365/teams/commands/chat/chat-message-send.spec.ts:245

• The validation test for invalid contentType values is present, but there's no corresponding test to verify that valid contentType values ('text' and 'html') pass validation. Consider adding a test case similar to the existing validation tests that verifies contentType validation succeeds with valid values.

  it('fails validation if contentType is not valid', async () => {
    const actual = await command.validate({
      options: {
        chatId: '19:8b081ef6-4792-4def-b2c9-c363a1bf41d5_5031bb31-22c0-4f6f-9f73-91d34ab2b32d@unq.gbl.spaces',
        contentType: 'Invalid',
        message: 'Hello World'
      }
    }, commandInfo);
    assert.notStrictEqual(actual, true);
  });