broot v0.7.2

• env variables usable in verb execution patterns, which makes it possible to use $EDITOR in default conf.toml
• ctrl-u and ctrl-d are now alternatives to page-up and page-down
• better error messages regarding faulty configurations
• more precise errors in case of invalid regexes
• use the OS specific file opener instead of xdg-open (concretly it means open is now used on MacOS)