Fixes the resource bar to randomly pop up even if deactivated

[RedAces]

What does this PR do?

Ive got the resource bars deactived.
During certain actions (e.g. during item upgrades) this bar pops backup up empty.

How was it tested?

Tested on 12.1 retail.

Checklist

• New settings default OFF (no behavior change without opt-in)
• Zero cost while disabled: no events registered, no polling, no hooks doing work, no frames built
• Cheap while enabled: event-driven (no polling, no timer-based logic, no per-frame allocations)
• No writes onto Blizzard-owned frames (weak-table pattern used); HookScript/hooksecurefunc only, never SetScript on Blizzard frames
• Tested in-game, works on live retail; no load errors on the 12.1 PTR client