Log metrics when the user configures the qs shortcut

Log with uid to indicate where the user configures the qs shortcut.
Currently it can be either Settings or SysUI.

Bug: 330572335
Test: run statsd_testdrive 644 and verify the output
Flag: N/A
Change-Id: I2771d535f413c9663486f5165712fbf6c4a50810