PAINTROID-796 Add Clip area tool

[Amit-Matth]

This PR introduces the Clip Area Tool, which works as a crop-like feature for the canvas.

PAINTROID-796

New Features and Enhancements

• Users can define a clip area by drawing a path on the canvas.
• On confirmation (checkmark), all content outside the clip path is cleared.
• Only the content inside the clip path remains visible.
• Implements behavior 1:1 with the native Paintroid app, ensuring consistent user experience.
• Integrates with the existing command system for undo/redo support.

This provides users with an intuitive way to crop their artwork to a custom shape, matching the functionality of the native app.

Refactorings and Bug Fixes

• Refactorings and Bug Fixes

Checklist

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