Booking mobile app

Application technical requirements:
* Mobile app
* dotnet 6.0
* MAUI
* Application with dark mode and light mode
* GRPC communication with server
* Auth0 integration
* Views with DI in constructor
* Server app
* dotnet 6.0
* Postgresql
* GRPC communication
* DI standard
* Auth0 integration

Application functionality requirements:
* Registration
* Register user (3 types of users)
* First name, last name
* e-Mail
* Name
* Profile page:
* Main image
* Gallery images
* Text information
* Register group
* Group can add users
* Group can register user
* Profile page:
* Main image
* Gallery images
* Text information
* List of users

* List of users and group of users per kind
* Booking owner
* User can schedule meeting with someone
* User can set meeting time
* User can setup lock time (dinner, break etc)
* Booking external
* User can schedule meeting with someone in available time
* User can see a available time without information about another meetings
* Settings
* Privacy options
* Profile settings