editor: Fix behavior of clickable line numbers navigation in multibuffer (#39447)

Repro:
- Open a multibuffer
- Click on a line number to jump to the corresponding file
- Click the back button
- Click the forward button, nothing happens
- Click the forward button again, now it works

Double clicking the code to jump to the file (with
`"double_click_in_multibuffer": "open"`) doesn't exhibit this bug, so I
just changed the logic when clicking on a line number in a multibuffer
to match that behavior.


https://github.com/user-attachments/assets/31c0d64d-fdb8-44d6-b0f3-a337ca53de30

Release Notes:

- Fixed bug that could cause navigation to break when clicking on a line
number in a multibuffer
83f0a36733Tim Vermeulen committed on 10/12/2025, 6:08:24 PM· committed by GitHubparentbbb6783
1 file changedLine totals unavailable