feat(navigation): jump to file at cursor in output window

[phanen]

resolve_file_at_cursor parses markdown links, file:// URIs, action
lines, and diff hunks. jump_to_file_at_cursor opens the file in
state.last_code_win_before_opencode (winnr('#') fallback) using a
silent :buffer/:edit helper to avoid re-triggering autocmds.

[sudo-tee]

I really like this idea.

Thanks for the PR.

I left a little comment about the jump function which I find a little complex.

Once the comment addressed it should be good to go

[jensenojs]

I also have a PR related to this feature, but it's somewhat similar to the one about automatically jumping to sub-sessions. It doesn't seem to have much to do with the code changes in the current PR. I might be quite busy these days, but I may continue to add related features based on this in the future ?