Inline (unified) diff view mode #3
Description
Currently only side-by-side diff is supported. Many users prefer a unified/inline diff view where changes are shown in a single column with additions and deletions interleaved.
Desired behavior:
- Toggle between side-by-side and inline view (keyboard shortcut)
- Inline view shows additions/deletions in sequence with clear markers
- Preserve navigation (next/prev diff) in both modes
Tech context: Monaco Editor supports inline diff via renderSideBySide: false option on the diff editor.