Add metrics for low battery warning

 - Log the action when clicking low battery warning notification or
   confirm dialog's each buttons
 - Log the dismiss event for notification and dialog
 - Log popup event

 Eldar: https://eldar.corp.google.com/assessments/51308713/drafts/480035865?jsmode=o#sections/11001001000

Bug: 218405244
Test: atest SystemUITests
Change-Id: I01d9ffb34797b386650a1f8877acf86190968a82