Merged 1.21.1 mod targets

- Merge feature/modded-versions into the modded fix integration
- Take loader pins from gradle/mod-targets.json for every target
- Pin the 26.3 NeoForge target to 26.3.0.83

gradle/mod-targets.json

@@ -0,0 +1,32 @@
+{
+  "1.21.1": {
+    "java": 21,
+    "fabricRemap": true,
+    "fabricLoader": "0.19.5",
+    "forge": "1.21.1-52.1.20",
+    "neoForge": "21.1.262",
+    "nativeAccess": "minecraft1_21_1",
+    "fabricModules": {
+      "fabric-api-base": "0.4.42+6573ed8c19",
+      "fabric-registry-sync-v0": "5.3.2+e3eddc2119",
+      "fabric-resource-loader-v0": "1.3.1+5b5275af19",
+      "fabric-lifecycle-events-v1": "2.6.0+0865547519",
+      "fabric-command-api-v2": "2.2.28+6ced4dd919",
+      "fabric-events-interaction-v0": "0.7.14+ba9dae0619",
+      "fabric-networking-api-v1": "4.3.1+d30f6a7919",
+      "fabric-rendering-v1": "5.2.1+f44c2eea19",
+      "fabric-key-binding-api-v1": "1.0.47+0af3f5a719"
+    },
+    "fabricPermissions": "0.3.1",
+    "slf4j": "2.0.9"
+  },
+  "26.3": {
+    "java": 25,
+    "fabricRemap": false,
+    "fabricLoader": "0.19.5",
+    "forge": "26.3-66.0.8",
+    "neoForge": "26.3.0.83",
+    "nativeAccess": "minecraft26_2",
+    "slf4j": "2.0.17"
+  }
+}