Add ability to switch to patch panel and search throlugh

[bradphelan]

Is your feature request related to a problem? Please describe.
When I'm splitting up patches sometimes I need to look for specific keywords through the entire patch set to check I've got everything. If the patch is big just looking at the file names is not enough.

Describe the solution you'd like
Currently search is only available if I select a single file from the file tree within the diff. I can then select and search for hunks. However this panel is not available for focus when a directory is selected.

Describe alternatives you've considered
Click on each file one by one and search. This is tedious for large commits

Additional context

[stefanhaller]

This will be possible once #3988 is implemented. This is pretty high up on my list of things to work on next.

[bradphelan]

Thanks for the quick response 😀 I'll wait for that then.

[ChrisMcD1]

@bradphelan With the merging of #4429, I think this is now resolved. Can you test it out on 0.50.0? Press 0 to focus the main view.

Please close the issue if it is indeed fixed 🤞

[bradphelan]

Works :)