Merge branch '2-revenue-info-card' of https://gitlab.gen-europe.org/gen_eu_public/gen-registration-tracker into 2-revenue-info-card

Add Income Info card to Dashboard Change money variables to float Add discount attribute to Registrants

Change money variables to float
Add discount attribute to Registrants

Add painel to error messages;
Add an Alert panel method;
Add Enum class;
Create constants for registration types in each Registrant class.

Merge branch 'feature/access-to-users-without-admin-rights' of https://gitlab.gen-europe.org/gen_eu_public/gen-registration-tracker into feature/access-to-users-without-admin-rights

Change the dashboard rights restriction
Update plugin version

* Create Class Gen_Dashboard_loader
* Create Class Gen_Dashboard_viewer