Frostfell

[Pijotre]

This thread aims to improve upon the current set of maps for the yearly Frostfell event.
This is a first overview to start and will be fleshed out in due time.

See also testing feedback below in post #3.

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Testing feedback:

- All Frostfell maps have been added and work, though some might need an updated, especially Icy Keep due to a map change, which changed it only slightly.