editor: Improve multi-buffer header filename click to jump to the latest selection from that buffer (#42480)

Closes https://github.com/zed-industries/zed/pull/42099

Regressed in https://github.com/zed-industries/zed/pull/42283

Release Notes:

- Clicking the multi-buffer header file name or the "Open file" button
now jumps to the most recent selection in that buffer, if one exists.
b4b7a23c39Smit Barmase committed on 11/11/2025, 8:34:37 PM· committed by GitHubparent0d56ed7
1 file changedLine totals unavailable