MidnightLib 1.5.0 - 1.20.2, slight redesign & cleanup

- Port to 1.20.2
- "Reset" button now uses a custom icon (closes #25)
- Config instances can now specify custom config change behavior (implement "writeChanges" method in your class; closes #33)
- Remove TexturedOverlayButtonWidget (replaced by vanilla's TextIconButtonWidget)
- Removed radialRainbow (used very rarely)
- Updated AutoCommand to support editing list and float config values via commands on serverside installs
- Reworded description
- Forge & Quilt temporarily disabled until they release, as always

common/src/main/resources/midnightlib.mixins.json

@@ -1,12 +1 @@
-{
-  "required": true,
-  "minVersion": "0.8",
-  "package": "eu.midnightdust.core.mixin",
-  "compatibilityLevel": "JAVA_17",
-  "client": [
-    "MixinOptionsScreen"
-  ],
-  "injectors": {
-    "defaultRequire": 1
-  }
-}
+{"required": true,"minVersion": "0.8","package": "eu.midnightdust.core.mixin","compatibilityLevel": "JAVA_17","client": ["MixinOptionsScreen"],"injectors": {"defaultRequire": 1}}