Duplicate imports when using "Update Imports On Paste"

@navya9singh がすでに取り組んでいます。

2025年7月28日 から。

Does this issue occur when all extensions are disabled?: Yes

Version: 1.103.0-insider (Universal)
Commit: d8361fecca3b53536de8f7a949b107fb7451e5e6
Date: 2025-07-25T05:03:31.984Z
Electron: 37.2.3
ElectronBuildId: 11993778
Chromium: 138.0.7204.100
Node.js: 22.17.0
V8: 13.8.500258-electron.0
OS: Darwin arm64 24.5.0

(Happens both in insider and in latest stable version)

### About the issue
- When you copy code that relay on symbols that already exits in the target file - you will have duplicate imports.
- When you copy code to a comment it will also copy the imports.

### Steps to Reproduce
Copy code that relay on import to another file that already has this import.

https://github.com/user-attachments/assets/8a2df326-a40f-41fb-93dc-cecedea283f7

Check out this repo for easy reproduce:
https://github.com/ido-pluto/vscode-copy-with-import-issue/tree/main