General quality update

Major changes along with some more minor patches + quality upgrades.

✅ Main Changes:
- Updated to 1.18.2
- Removed Imber, Altum (for now) and Navitas
- Patched issue #1
- Made balancing changes
- Cleaned up project
- Simplified confusing code

bin/main/data/aspects/powers/explosion_damage.json

@@ -2,7 +2,7 @@
     "type": "origins:action_when_damage_taken",
     "entity_action": {
         "type": "origins:damage",
-        "amount": 4,
+        "amount": 2,
         "source": {
             "name": "explosion",
             "bypasses_armor": false
@@ -14,7 +14,7 @@
     },
     "cooldown": 1,
     "name":"Crystalline",
-    "description":"You take more damage from explosions.",
+    "description":"You take more damage from explosions. / +2 explosion damage",
     "badges": [
         {
             "sprite": "aspects:textures/gui/badge/cross.png",