[bug][Layers] Copy-pasting a layer unexpectedly duplicates it

[spartan-uyen]

Describe the bug

Summary:
When copying and pasting a layer in a project, instead of pasting a single instance, two identical layers are created.

Step to reproduce:

1. Create a blank project (with at least one element, such as a text element).
2. Copy a layer (e.g., a structure like div > div > text).
3. Paste the copied layer into the project.

Actual result:
Two identical layers are pasted into the project (e.g., div > div > text, div > div > text).

Please watch this video
https://github.com/user-attachments/assets/60185d0e-d0fa-4455-8930-8a64a703fa56

Expected result:
Only one instance of the copied layer should be pasted into the project.

[imtarunk]

@spartan-uyen @Kitenite @drfarrell I'm a college student currently working on this bug and few bugs related to this project that uses the Anthropic API. Unfortunately, I’ve run out of credits and can’t afford to buy more at the moment.

If you're open to it, I’d truly appreciate a small contribution—around $10—or if you have a spare API key I could use temporarily, that would mean a lot!

Here’s my ETH wallet:
0x70e4A7D4c76CcA3A80C178c95F8319c84939eF6F

Thanks for your time and consideration, and either way, I really admire the work you're doing in the space. 🙏