Make commission listings better.

[LightningZBolt]

Is your feature request related to a problem? Please describe.
Commission lists are a pain to browse, there's no option to look for all kinds of art under 'type', or even just multiple. There's no way to see artists that do commissions unless you're on their profile directly already. Also commissions reset every single page so it's hard to keep track of who you have and have not seen.

Describe the solution you'd like
A way to select more than one or even all/none under 'commission type'. A way to display artist with commissions opened under their artist tag. A way to keep commissions listed consistent per search so they don't scramble order every page.

Additional context
Commission lists are not as useful to browse as they could be, a few QoL changes or fixes will make them more viable. This is what I have in mind for now.

[TheSmilingPony]

Would be nice to go along with #243