Sill v1.5.0

• A small "Loading…" row sits at the bottom of the popup while a list is still on its way, as with npm install re.
• Typing .. offers ../ like any other folder, and with cd ../ it stays on top so Return goes up one level.
• Newer gh commands are completed, such as gh auth switch and gh auth token.
• With "Learn unknown commands from --help" on, a command that already has a definition also gains what that definition lacks.