RS-Client: Refactoring (also gradle compiler args) (#1236)

* gradle: compiler args for mixins/rs-client

* rs-client: yes

* rs-client: no

runescape-client/src/main/java/MouseRecorder.java

@@ -45,7 +45,7 @@ public class MouseRecorder implements Runnable {
 	}
 
 	public void run() {
-		for (; this.isRunning; EnumDefinition.method4550(50L)) {
+		for (; this.isRunning; EnumDefinition.sleepMillis(50L)) {
 			synchronized(this.lock) {
 				if (this.index < 500) {
 					this.xs[this.index] = MouseHandler.MouseHandler_x;