* Reorganised Set command group
* Moved custominfo
* Tox styling
* Make `set locale®ionalformat` groups work same as server subcommands
* Use consistent method names for commands in `[p]set` group
* Update command names in docstrings
* Remove some weird rst formatting that bugs out my syntax highlighting
* Add checks to some command groups
* Update docs
* oops
* Minor fixes
* Move `[p]set api` group and its subcommands to other command groups
* Move `[p]set ownernotifications` group to other command groups
* black reformat
Co-authored-by: jack1142 <6032823+jack1142@users.noreply.github.com>