Move CoA settings from E.global/E.private into a proper AceDB-3.0 database
(CoA.db, SavedVariables ElvUI_CoADB) with a Profiles options tab, since
ElvUI doesn't ship AceDBOptions-3.0 (vendored under Libraries/).
Add ClassResources.lua: hooks the custom-class resource frames (segment
bar, orb, bar, multi-cast bar) into ElvUI's Toggle Anchors, with a
per-frame hide checkbox in a new "Class Resources" options tab.
Add DispelHighlight.lua: highlights dispellable debuffs on unitframes,
with talent-aware filtering for custom classes.
Fix mover/anchor reliability for Class Resources and the Instance
(LayerPicker) button:
- Movers were only retried until the target frame existed, not until the
mover was actually created, so frames that start at zero size (e.g. a
resource bar before that resource is ever active) permanently lost
their mover.
- Class resource frames re-anchor themselves on refresh, stomping the
mover's anchor; hook SetPoint to snap back to the mover holder whenever
something else repositions the frame.
- Native click-drag on these frames ends with the engine calling SetPoint
directly, severing the mover anchor entirely. Permanently block drag
(script and RegisterForDrag) instead of clearing it once.
The vanilla border baked into the icon texture grew visible again at
large button sizes since the covering rim used a fixed edge thickness.
Both the rim edge and the hotkey's corner inset now scale with the
button size to keep the border hidden and the hotkey clear of the rim
at any size.
Skinning of both the ExtraActionBar and LayerPickerFrame buttons is no longer opt-in. Replaces the old single Skins tab and its toggles with two empty tabs, Extra Action Button and Instance Swap, for future per-frame settings.