"Last spawns" string should be changed to "Last mythic spawns" if "mythic_recents" is enabled

[z0n]

Expected Behavior

I enabled the "mythic_recents" option in the variables.json, this should change the string "RECENT_SPAWNS" to something like "The most recent mythic spawns" to emphasize that only mythic spawns are displayed here.

Current Behavior

"The most recent spawns" is displayed regardless of the "mythic_recents" option.

Possible Solution

Change the string "RECENT_SPAWNS" to something like "The most recent mythic spawns"

Context

It's not clear what kind of Pokémon are displayed in the recent spawns list.

[Obihoernchen]

#172 merged