feat: allow copying placement coordinates with a click #142

[Valley-15]

Add click handlers to X and Y coordinate labels in the Placement sidebar to copy values to the clipboard. This assists users in duplicating object positions across slides accurately.

Closes #142

[asmitahase]

Um, this makes copying easier, but pasting should also be equally easier 😅
What is important is that I shouldn't have to remember the co-ordinates the element is at, in the previous slide or hop back and fourth on the slides to copy paste them twice

[Valley-15]

Hello @asmitahase Mam,

Thank you for the feedback. I have updated the Pull Request to make the pasting process just as easy as copying, addressing the workflow concerns you mentioned.

Key Changes:

• Dedicated Icons: I have added distinct Copy and Paste buttons next to both the X and Y coordinate fields in the Placement sidebar.

• Streamlined Workflow: Users can now copy a coordinate from one element and instantly apply it to another with a single click, eliminating the need to memorize values or hop between slides multiple times.

• Rounded Precision: The copy function automatically rounds coordinates to the nearest integer to ensure clean alignment without decimal offsets.

• Clear Feedback: Added informative tooltips to each button to guide the user.

I have attached a screen recording below demonstrating the new feature in action. Please let me know if there are any further improvements you would like to see!

v1.webm

[Valley-15]

@coderrabbitai can you review it