Rework detection for holidays and world events

[rdw-software]

It currently uses the icon to detect when a specific event is active.

Unfortunately, some are shared, which causes the addon to mistakenly believe a relevant world event is active when it isn't.

Example: 235464 is used by: Darkmoon Faire, Pilgrim's Bounty, and Brewfest

Brainstorming:

• Use two parameters, icon plus localized name instead of just the icon