Fix mouse capture not receiving events on some devices

Author: Mathias-Boulay

app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/MinecraftGLView.java

@@ -15,5 +15,6 @@ public MinecraftGLView(Context context, AttributeSet attributeSet) {
         //Fixes freeform and dex mode having transparent glass,
         //since it forces android to used the background color of the view/layout behind it.
         setOpaque(false);
+        setFocusable(true);
     }
 }