chore(magnification settings): add logWithPosition() to log things like which...

chore(magnification settings): add logWithPosition() to log things like which magnification size was tapped.

Also from which magnifier the log panel opens (fullscreen or window).

Bug: 281241589
Test: atest frameworks/base/packages/SystemUI/tests/src/com/android/systemui/accessibility/WindowMagnificationTest.java
  && aster-previz

Change-Id: I3d55c2c10507c5d6996d5744dc4339fabc54e29c