Animated Profile Banners

[jakeledoux]

(Suggested by @V3LKR0W on Crabber) It would be cool to have animated banners as an option. I initially considered allowing users to paste giphy links as an alternative to uploading traditional banners, but ruled against this for reasons of bandwidth and garish potential.

The current plan is as follows:

• [ ] Curate a selection of animated banners in WEBM format
• [ ] Add a radio selector made up of square previews of said banners to the banner-change form
• [ ] Ensure traditional banner is not being loaded when an animated banner is in place (to save bandwidth)
• [ ] Add a switch to disable display of animated banners (for concerns of epilepsy and related conditions)

Using a small selection of hand-picked banners allows not only for deliberate compression/optimization but also browser caching so the client doesn't have to load a full GIF every time a profile is loaded.

[jakeledoux]

I've been caught up on creating the radio buttons for the banners. They work fine in sane browsers but for some reason Safari refuses to repaint the labels when clicked. It'll sometimes repaint for other reasons but it's completely unusable as-is.

I really do hate Safari for bugs like this. For now I'll have to keep grinding for a version that doesn't enrage the Kraken.

[jakeledoux]

Putting this on an indefinite pause for now.