Add setting to toggle display of ornaments, with hover to preview opposite state

[FlaminSarge]

Hovering (or long-pressing on mobile) will flip the icon to whatever isn't being displayed (ornament if setting is off, base icon if setting is on).
Setting uses 'all'/'none' instead of boolean so that if in the future we want to expand the setting to only weapons/armor/exotics/etc. we can use the same setting.
This also adds a slight transition for the shiny background animation so it's not as abrupt when it is hovered.
Reduced motion setting is honored and does not include the 0.2s transition, just instantly changing the icon instead.

base_feature.mov

reduced_motion.mov

shiny_background.mov

Changelog: Add setting to toggle display of ornaments and view ornaments when hovering over items

[FlaminSarge]

Reduced motion setting is honored and does not include the 0.2s transition, just instantly changing the icon instead.

Debating whether this shouldn't even be included and should just not swap icons at all when reduced-motion.

[FlaminSarge]

Also this does reduce the visual intensity of the masterwork glow for ornamented exotics since it draws behind the icon if it has an ornament, I believe (due to the whole background/foreground thing being skipped in the !animatedBackground && !altIcon block).

Also tested on mobile, does work with the long-press, since that triggers hover and we don't have anything hooked up to long-press on DIM.

[bhollis]

Also tested on mobile, does work with the long-press, since that triggers hover and we don't have anything hooked up to long-press on DIM.

In sheets like the pull item sheet, we do use long press to activate the item popup. I'm not worried about it.

[FlaminSarge]

(Planning to rebase and squash this once it's ready)

[FlaminSarge]

Rebased and condensed down to 3 independent commits, should be ready to go. No changes from original branch other than en.json update.