Shorten molt effect descriptions (CleverRaven#66154)

* Shorten descriptions

* Update effects.json

data/json/effects.json

@@ -4219,7 +4219,7 @@
     "type": "effect_type",
     "id": "molting",
     "name": [ "Molting" ],
-    "desc": [ "Your exoskeleton feels uncomfortably tight.  Perhaps you should find somewhere to rest." ],
+    "desc": [ "You feel a strong urge to hide somewhere safe." ],
     "apply_message": "Your chitin plating itches against your body.",
     "rating": "bad",
     "base_mods": {
@@ -4238,9 +4238,7 @@
     "type": "effect_type",
     "id": "molting_imminent",
     "name": [ "Imminent Molting" ],
-    "desc": [
-      "Your exoskeleton has grown so tight and rigid that it grips you like a vise.  You must seek shelter for the coming molt."
-    ],
+    "desc": [ "Seek shelter, you will be helpless when it begins." ],
     "apply_message": "You can hardly move in your tightening exoskeleton, and you feel a strong impulse to hunker down somewhere safe.",
     "rating": "bad",
     "base_mods": {