Add personal / work tabs for work profile widgets

Video: https://drive.google.com/file/d/1TORRNcvVM7fIvNd_WZaajLbI7D9z4VFA/view?usp=sharing


Test: Main profile only: run AddConfigWidgetTest.
      With work profile: manually launch the full widgets sheet.
      Go to the personal tab: only personal widgets are shown.
      Go to the work tab: only work widgets are shown
      Successfully add personal / work widgets from the full widgets
      sheet.

Bug: 179797520

Change-Id: Iad8b90c2af35e0580319d7a05510ec88e4f8b86c