Find a pane through fuzzy searching of path, title and content

[cryptocode]

(This feature idea may depend on #189)

As many programmers living in the terminal, I usually have a fair number of windows, tabs and splits open at the same time. I think it would be a significant QoL improvement to be able to quickly find a specific pane based on fuzzy searching paths and content.

It could work something like this:

Meta+find pane opens a window similar to the "Show All Tabs" feature that already exists, but instead it shows all tabs from all windows along with a search field.

As you start fuzzy searching, the window with the closest match is moved to the top (because the window list gets reordered)

Matching criteria would likely prioritize the pane's working directory, window title, and reverse search of content (since you're most likely looking for something you were recently working on).

Below is a mockup where the user is searching for a path. Only windows containing a pane with that path (or text) is shown. Hovering a match zooms in a bit so it's legible.

Clicking not only opens the window, it brings you to the matching tab and the matching split:

[jcollie]

It would be good to expose this to Gnome Search as well as to macOS' Spotlight as well. Not sure how it would interact with similar options in KDE or other Linux desktop environments.

I've messed a bit with Gnome search providers but don't have anything fully working yet.

[pluiedev]

Not sure how it would interact with similar options in KDE

I actually have experience with this! Ghostty could register itself as a KRunner plugin via D-Bus, and return a list of results based on the query. Not sure how many people would actually use this, but hey, it is possible.