[Experimental] fern mod update (#43)

* remove id from region_overlay

* fix harvest by season

Author: TheGoatGod

data/Unleash_The_Mods/mods/fern_mod/forest.json

@@ -1,7 +1,6 @@
 [
   {
     "type": "region_overlay",
-    "id": "default_overlay",
     "regions": [ "all" ],
     "forest_mapgen_settings": {
       "forest": { "components": { "shrubs_and_flowers": { "types": { "t_fern": 15 } } } },

data/Unleash_The_Mods/mods/fern_mod/items.json

@@ -11,7 +11,7 @@
     "coverage": 20,
     "flags": [ "FLAMMABLE_ASH", "DIGGABLE", "FLAT", "THIN_OBSTACLE", "SHRUB" ],
     "examine_action": "harvest_ter_nectar",
-    "harvest_by_season": [ { "seasons": [ "spring" ], "entries": [ { "drop": "fiddlehead_raw", "base_num": [ 1, 4 ] } ] } ],
+    "harvest_by_season": [ { "seasons": [ "spring" ], "id": "fiddlehead_raw" } ],
     "transforms_into": "t_fern_harvested",
     "bash": {
       "str_min": 2,