broot v0.6.0

Major changes

• broot now installs the br shell function itself (for bash and zsh, help welcome for other shells)
• new verb :toggle_trim_root allows to keep all root children
• verbs can refer to {directory} which is the parent dir when a simple file is selected
• user configured verbs can be launched from parent shell too (like is done for cd {directory})

Minor changes

• allow page up and page down on help screen
• fuzzy pattern: increase score of match starting after word separator
• better handle errors on a few cases of non suitable root (like passing an invalid path)
• clearer status error on :cd. Mentions <alt><enter> in help
• add a scrollbar on help screen