* chore: implement CalendarBloc
* chore: enable save and read the calendar setting
* style: more precise variable name
* chore: backend calendar settings
* chore: protobuf for layout settings
* chore: update test
* chore: Enumerate the LayoutTypePB enum type to get the supported layout types
* fix: deserialize object type is not the same as serialize object type
* chore: add set/get calendar settings event
* ci: fix wanrings
---------
Co-authored-by: nathan <nathan@appflowy.io>
Co-authored-by: vedon <vedon.fu@gmail.com>