Update Copilot IDE feature matrix for VS Code 1.104.0-1.108.0 (#59424)

Co-authored-by: anthropic-code-agent[bot] <242468646+Claude@users.noreply.github.com>
Co-authored-by: sunbrye <56200261+sunbrye@users.noreply.github.com>
Co-authored-by: sunbrye <sunbrye@github.com>

Author: Claude