Have "app support" link in App Store item link to here

[ShadowJonathan]

As per this post, I initially had trouble reporting bugs and giving feedback, I tried to look at the footer and such for info (i filed an issue addressing that here; #243), then i looked at the App Store item, which has "app support" next to the "write a review" button.

I think it'd be useful that that button links to here? Or maybe a dedicated feedback channel, or something else, to have users be able to provide feedback to this app.