[fix][era][cata]: Compatibility updates with LFGBulletinBoard minimap button

[juemrami]

Related Issues:

• Compat updates for LFGBulletinBoard #235

In this PR:
Button will now get handled but the LibDBIcon-1.0 if our users are using it.

Compatibility function now only skins the non LibDBIcon-1.0 compliant minimap button from LFGBulletinBoard. This allows us (LFGBulletinBoard) to maintain functionality of not having the button anchored to the minimap perimeter.

Images
(Non LibDBIcon version. Skinned and aligned with other LibDB ones, maintains our addons functionality still)

(LibDBIcon managed version enabled. Your addon will treat it like any other LibDBIcon button)

• Note: A reload is required on our end when toggling LibDBIcon mode for it to actually take effect, so no additional logic required for edge cases there.

Tested On

• Era & SoD
• Cataclysm