* world map: correct locations of quest markers
* world map: remove unneeded multi-quest support
Jagex have decided to make a marker for every quest now, instead of
reusing markers for multiple quests. This simplifies logic a lot
* world map: remove unneeded tooltip system
The update on 28/07/21 added vanilla support for quest completion
tooltips. As such, ours are no longer necessary.
* world map: update config text to better reflect quest icons new function
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