[Feature] "Select All"/checkboxes on submission files

[faucetlol]

Sometimes there's pages full of content I don't want to upload, and having to click the H 25 times per page is kinda exhausting when there's a few hundred pages I want to do it with. Having a "Select All" option and checkboxes like e621's post changes page would be pretty nice.

I'd understand if this one was too much effort though, Reverser does seem pretty minimal in JS usage at the moment.

[Earlopain]

I'm not hiding much myself, but I can see how it can get annoying, especially since clicking on a single letter isn't all that easy. Same for the backlog.

I will add this sometime

[faucetlol]

Finally got around to trying this - works great! Thank you so much!