Migrate uiMode, theme and dpi change updates to ShellController for tiling.

Tiling depends on taskInfo updates to listen to theme and uiMode updates,
this is specially inaccurate if the app overrides the system config.

This CL migrates the uiMode and theme updates listening from
onTaskInfoChange API to shellController.onConfigurationChange API.

also tiling now re-draws when the density dpi changes mid-tiling session
to respect the new resolution.

Flag: com.android.window.flags.enable_tile_resizing
Test: Unit tests and on device testing
Bug: 424780063
Change-Id: Ibcd75c8613bc5acdbb32605d2ea44fad72ed99d5