Add clipboard logs for minimized UI

Log when the clipboard is shown in an expanded/minimized state, as
well as when it is tapped to expand.

Bug: 260707686
Test: make statsd_testdrive && $ANDROID_HOST_OUT/bin/statsd_testdrive 90
atest ClipboardOverlayControllerTest

Change-Id: Iec2631ead4ed1222a80f1f99737cbadd8608f696