Auto‑replace quote pairs on key press

I'd like to propose an automatic quote replacement feature.

Current behavior:

If I have a piece of text wrapped in double quotes, e.g. "example", and I select the text, then press a different quote key (e.g., `), nothing happens – I have to manually delete and retype both quotes.

https://github.com/user-attachments/assets/37ac701c-94f8-4fb1-a62e-2050fab74b36

Expected behavior:

The editor should automatically replace the existing opening and closing quotes with the newly pressed one.

This should work for all quote pairs: "", '', «», „“, etc., and should intelligently detect the matching opening and closing quotes to replace them both.

https://github.com/user-attachments/assets/0bda21fa-1c53-4d91-aaad-b096fc40f23d