Feature Request : Add a shortcut key (Ctrl + T) for adding text on the canvas for web users

[may-tas]

Is your feature request related to a problem? Please describe.

• The web version lacks keyboard shortcuts for adding text, which limits productivity for power users.

Describe the solution you'd like

• Add a shortcut key (Ctrl + T) in web_utils.dart, and update canvas_screen.dart to reference it, triggering the add text method.

Additional context

• Please keep the codebase clean and formatted.

[github-actions]

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[ayn-aval]

Please assign me @may-tas.