Fix some issues that make caption insets remain

This CL does the following:
* Remove caption insets when releasing the window decor
* Update caption insets in InsetsController when the caption is in WM
  shell
* Dump LocalInsetsSourceProviders to help debug related issues

Bug: 241029178
Test: The caption type of insets provider is removed when window decor
      is released.
Test: atest WindowDecorationTests
Change-Id: Ia20e1958588de3a7d965b3ac3d3e4333c67dff36