Refine the way of calculating insets for configuration (1/3)

The original patch reverted as commit
bc0d5539.

This patch only includes the part of refactors to make the calculation
of configuration around insets easier. The actual change of making extra
navigation bar treated as navigation bar and the fix of the UiDevice in
ui automator is in a separate patch to avoid being blocked and blocking
other changes for long.

Test: PlatformScenarioTests
Test: TaplTestsQuickstep, ThemeIconsTest, TaplTestsLauncher3
Bug: 238981445
Bug: 238985243
Bug: 238581838
Bug: 233945217
Change-Id: If966bcc8125300d47d5cd631f7db17ff027e5261