[1/3] autoclick: Do not reset timer when cursor moves within indicator

Even the ignore cursor movement setting is off, movement within the
visual indicator should not reset the timer.

demo: http://b/430320631#comment3.

The "Ignore minor cursor movement" settings should only affect whether
center dot will follow the cursor, which will be implemented in
following CLs.

Change-Id: Ib4248183bff4362b1a75b46e8513d21d635cee45
Bug: b/430320631
Test: AutoclickControllerTest
Flag: com.android.server.accessibility.enable_autoclick_indicator