Add color picker option for all layer types (ellipse, rectangle, text, strokes, etc.)

[heyitsadityaa]

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Currently, users cannot customize the color of different layers (ellipse, rectangle, text, strokes, etc.) directly from the UI. To improve usability and design flexibility, add a color picker option for each layer type. This should allow users to select and update the fill and stroke colors for any supported layer.

Acceptance Criteria:

• A color picker UI is available for each layer type (ellipse, rectangle, text, strokes, etc.)
• Users can change both fill and stroke colors where applicable
• The selected color is immediately reflected on the canvas
• The color picker is accessible and user-friendly

Additional Notes:

• Consider using a popular React color picker library for consistency and accessibility.
• Ensure the feature works for all supported layer types.
• Add tests or QA steps to verify the color picker functionality.