bot_ai cleaning + formatting + documentation improvements

[Matuiss2]

Pylint fixes

• Remove some unused imports

• Remove unnecessary pass (the docstring already does what pass is supposed to do, so I removed the redundancy)

• Remove else and elif after returns(doing it make the functions very slightly faster, and cleaner as well)

Reformatting

• Use black module to format the code

Documentation improvements

• Update the docs

• Add some usage examples

• Add some necessary info on some of the docs

• Add docs where it didn't have