Clean the build script a bit

build.gradle.kts

@@ -141,13 +141,13 @@ allprojects {
                     from(this)
                 }
             }
-            val ModProperties = mapOf<String, String>(
+            val modProperties = mapOf(
                 "mod_version" to (rootProject.version as String),
                 "minecraft_version" to mcBase
             )
-            inputs.properties(ModProperties)
+            inputs.properties(modProperties)
             filesNotMatching(listOf("*.png")) {
-                expand(ModProperties)
+                expand(modProperties)
             }
         }
     }