Arsenal - Add magazine classname searching & improve left hand search

[SpicyBagpipes]

When merged this pull request will:

• Allow searching via magazines
  • Only exact matches (given I figure it's getting ctrl+c'd anyway)
  • Will NOT try to look through compatibleMagazines if the search term is not an exact match for a magazine classname.
• Make <Empty> always show even through searches.

IMPORTANT

• If the contribution affects the documentation, please include your changes in this pull request so the documentation will appear on the website.
• Development Guidelines are read, understood and applied.
• Title of this PR uses our standard template Component - Add|Fix|Improve|Change|Make|Remove {changes}.

[SpicyBagpipes]

idk if <empty> disappearing after the search changes ever bugged anyone else when searching but it really annoyed me so i just did it while in the area

[SpicyBagpipes]

Todo: not check the search term is a magazine literally every item idk what I was thinking

[SpicyBagpipes]

goofy ass automatic commit name

did the above