Update UI/UX for selecting images on recent

1. Add photoPicking state which set to true when mime type is image.
2. Add new grid mode holder for photoPicking state.
3. Only show images files and folders on photoPicking state.

Bug: 112470012
Test: manual
Test: atest DocumentsUITests
Change-Id: Ibc06c7b148a36bf5ba346dcdade58fe455888aa6