[Request] Improve path selection

[florian-lefebvre]

Is your feature request related to a problem? Please describe.
The path selection UX is not as good as it could be. In particular when it comes to selecting deep paths. For my case, it's purely about directories.

Describe the solution you'd like
Some solutions:

• Allow tabbing when there's a match, which would fill it in. For example: in a given folder /foo/, type b whichs selects /foo/bar. Tabbing would update the input value to /foo/bar
• Fuzzy matching: search for anything in the tree below the specified root

Describe alternatives you've considered
Not use the path selection widget

Additional context
N/A