Use finger input whenever possible

Even if the pointer is a mouse, inject it as a finger unless it is
required to be a mouse, that is:
 - when it is a HOVER_MOUSE event, or
 - when a secondary button is pressed.

Some apps/games only accept events from a finger/touchscreen, so using a
mouse by default does not work for them.

For simplicity, make this change on the server side just before
event injection (so that the client does not need to know about this
hacky behavior).

Refs 6808288823239b0f3a76f9be377e4de82e91b35a
Refs c7b1d0ea9af8bb9603ec8f713f1a5fbf3f628b6a
Fixes #5162 <https://github.com/Genymobile/scrcpy/issues/5162>

server/src/main/java/com/genymobile/scrcpy/control/Controller.java

@@ -278,8 +278,9 @@ public class Controller implements AsyncProcessor {
         pointer.setPressure(pressure);
 
         int source;
-        if (pointerId == POINTER_ID_MOUSE) {
+        boolean activeSecondaryButtons = ((actionButton | buttons) & ~MotionEvent.BUTTON_PRIMARY) != 0;
-            // real mouse event
+        if (pointerId == POINTER_ID_MOUSE && (action == MotionEvent.ACTION_HOVER_MOVE || activeSecondaryButtons)) {
+            // real mouse event, or event incompatible with a finger
             pointerProperties[pointerIndex].toolType = MotionEvent.TOOL_TYPE_MOUSE;
             source = InputDevice.SOURCE_MOUSE;
             pointer.setUp(buttons == 0);