[FEATURE] Create a room

[Dan-tha-man]

Is your feature request related to a problem? Please describe. Create and access rooms

Describe the solution you'd like

• [x] create new rooms
• [x] invite people to rooms
• [ ] sync up events with room

Additional context

dart http package

[NADEE-MJ]

syncing events of a room is a part of #7, this issue has been completed otherwise, will close and continue working on #7.