Move modlogset/bankset commands to core (#4486)

* Move bankset and modlogset to core commands

* Move prune over too

* Finish moving prune

* Move [p]economyset registeramount to [p]bankset registeramount

* style fix

* Fix circular import issue with another breaking change

* Apparently I missed a conflict and git still let me commit...

* Really git?

* Rename RawUserIds -> RawUserIdConverter, improve documentation

* Improve documentation of `is_owner_if_bank_global()`

* MENTION_REGEX -> USER_MENTION_REGEX

* Add 'bank.' prefix

* Fix command examples in docstrings

* Missing docstring change from `bankset prune`

* Missing changes for commands in modlogset

* Update docs

* Remove duplicated info in `economyset showsettings`

* Fix toctree in index.rst

* Add command group prefixes to names of functions for bankset/modlogset

* Remaining string updates due to command name changes

* Ensure that the bank folder is actually gone

Co-authored-by: palmtree5 <palmtree5+3577255@users.noreply.github.com>
Co-authored-by: jack1142 <6032823+jack1142@users.noreply.github.com>

docs/index.rst

@@ -35,7 +35,6 @@ Welcome to Red - Discord Bot's documentation!
     intents
     cog_guides/admin
     cog_guides/alias
-    cog_guides/bank
     cog_guides/cleanup
     cog_guides/cog_manager_ui
     cog_guides/core