Add Kagi image type search bangs

Thibaultmol

I was thinking more about bangs and such and realized that there are no bangs yet for these:

I was going to add them myself to the repo (just like how I added these https://github.com/kagisearch/bangs/pull/128 , which btw: do i need to make a kagifeedback post about them so they're included in the patch notes or does that not matter?)
but the problem is they overlap with existing bangs.

!gif goes to giphy (this is the biggest problem honestyl)
!clipart goes to .... http://office.microsoft.com/en-us/clipart/results.aspx?qu={{{s}}}&sc=20 which has been broken for a decade now so probably is ok overwritting
!line is available
!face is available but !faces goes to google image faces.... (why it's not gfaces.. who knows)
!photo is available
!shopping goes to google shopping. although tbf here you probably don't want !shopping to go to images?

it might also make sense to have !i prefix versions of these bangs? which tbf would also make all these conflicts go away. But does mean one extra letter to type.

nobodywasishere

do i need to make a kagifeedback post about them so they're included in the patch notes or does that not matter?

Currently the changelog doesn't take into account specific changes to the bangs repo (unless they're related to a kagi feedback post). This can be changed though.

!gif goes to giphy (this is the biggest problem honestyl)

This can probably stay as-is. I'd be fine with the rest being added (except for shopping). Part of bangs is their discoverability. Having !photo query and !clipart query would be perfect for that.

It should be possible to implement these using operators instead of query params, to allow better interoperability with snaps, but that can be handled later.