Make all tasks in intermediate carousel have the same size

- Replace fullscreen translation/scale with nonGrid, which applies whenever tasks are not in grid, so that intermediate carousle's tasks have the same size as focused task
- Avoid showing task icon in intermediate carousel as its scaled up. During swipe up, all task icons only appear after gesture is finished consistenly, regardles if it's running task.
- When swipe up from home, make tasks join the grid immediately
- Make pageOffset calculation consider task scale
- Tuned resistance and scale when RecentsView is swiped up

Bug: 187417137
Test: manaul
Change-Id: Ide55a32241a3551a58e12c399c22420562848c70