5ET-1255 Allow negation on the search page

[crawltracker]

Information
Allow for negating search terms on the search page
Such as notin:item

Who would use it?
Please wantsing to conduct a broad cross-datatype search but wanting to filter out some results
E.g. all SRD content in the DMG except items

How would it work?
notin notsource notpage

Why should this be added?
Handy

• revilowaldow (Lyra)

Upvote - revilowaldow (Lyra)

Indifferent - spap (Spappz)

Upvote - f0rgetful (forgetful)

Upvote - wonderland42 (Wonderland)

Upvote - teccamtheturtle (Teccam)

Upvote - hojou (Hojou)

Upvote - darianfrey (DarianFrey)

Upvote - momoko_sweetie (Cherri)

Upvote - papa_pigeon (Jirooo)

Upvote - freedverse (Frêêd~Vêrsê)

Upvote - fotoply (fotoply)

Upvote - mcfow1er (Mc Fow1er)

Votes: +11 / -0 / ±1