- Format Sliver folder
- fix 'inheritFromWidgetOfExactType' is deprecated
- 'silverFillRemainingWidget' is missing
- 'BubbleBottomBarItemModel'
- remove 'BubbleBottomBarItemModel'
- add 'bubbleBottomItem' function
- add 'SpeedDialChild' function
- change content in sliver list
- update content in sliver page
- update instant access for easy access helper functions