add missing copyright attribution for MouseUtils.java

COPYING

@@ -10,4 +10,6 @@ Other Licenses:
             - environmenttech
                 - client
                     - renderer
-                        - EnvStorageRenderer = Blu's License of Common Sense
+                        - EnvStorageRenderer.java = Blu's License of Common Sense
+                - utils
+                    - MouseUtils.java = MIT

build.gradle.kts

@@ -62,7 +62,8 @@ spotless {
 
 	java {
 		// Originally, this was from Kaupenjoe's repo, and was licensed by BluSunrize as the original code was from her, so we exclude it to not add our License Header
-		targetExclude("src/main/java/robaertschi/environmenttech/client/renderer/EnvStorageRenderer.java")
+		targetExclude("src/main/java/robaertschi/environmenttech/client/renderer/EnvStorageRenderer.java",
+			"src/main/java/robaertschi/environmenttech/utils/MouseUtils.java")
 		importOrder("lombok", "java|javax", "", "net.minecraft", "com.mojang", "robaertschi", "\\#")
 		removeUnusedImports()
 		licenseHeaderFile("HEADER.java")

src/main/java/robaertschi/environmenttech/utils/MouseUtils.java

@@ -1,5 +1,11 @@
 package robaertschi.environmenttech.utils;
 
+/**
+ * This file is from <a href="https://github.com/Tutorials-By-Kaupenjoe/Forge-Tutorial-1.19/">here</a>.
+ * So all credits go to Kaupenjoe. The code is under the following license: <a href="https://github.com/Tutorials-By-Kaupenjoe/Forge-Tutorial-1.19/blob/main/LICENSE">here</a>
+ * @author Kaupenjoe
+ */
+
 public class MouseUtils {
     @SuppressWarnings("unused")
     public static boolean isMouseOver(double mouseX, double mouseY, int x, int y) {