Add ability to lock client to screen

runelite-client/src/main/java/net/runelite/client/config/RuneLiteConfig.java

@@ -156,6 +156,17 @@ public interface RuneLiteConfig extends Config
 		return 4;
 	}
 
+	@ConfigItem(
+		keyName = "containInScreen",
+		name = "Contain in screen",
+		description = "Makes the client stay contained in the screen when attempted to move out of it.<br>Note: Only works if custom chrome is enabled.",
+		position = 12
+	)
+	default boolean containInScreen()
+	{
+		return false;
+	}
+
 	@ConfigItem(
 		keyName = "rememberScreenBounds",
 		name = "Remember client position",