Show suggestions/autocomplete when entering a path

[Lonami]

I love the idea of easily being able to manually enter the full path. Some suggestions or autocomplete would be really helpful though, it should be a simple list directory to the path until the last /.

[veniosg]

Good suggestion! There's other issues more central to the experience in the roadmap but I'm definitely open to merging this if a contributor is up for it.

This should be a normal autocomplete list (UI like chrome's auto suggestions, no icons). When clicking on an item that path segment should be added to the path textview and not actually navigate.
To clarify, the suggestions should behave the same way Windows file explorer's work, filtering as you type, only suggesting children of the path up to the last /, hiding the suggestions completely if anything went wrong (invalid path, empty results etc).