Use TaskbarAllAppsButtonContainer and TaskbarDividerContainer in TaskbarView

This cl includes
	- Usage of TaskbarAllAppsButtonContainer and TaskbarDividerContainer in TaskbarView. This can be seen as a refactor.
	- Animation refactor related to all apps button container refactor

Test: Presubmit
Bug: 356465292
Flag: com.android.launcher3.enable_taskbar_customization

Change-Id: I5b7c4f56aacac18fc6872f77b15e2e9ae896799e