- moved isCoordinator to middleware

Co-authored-by: Alexander Rudolph <drblaui@users.noreply.github.com>
Co-authored-by: Florian-Studium <Florian-Studium@users.noreply.github.com>
Co-authored-by: brendanlaschke <brendanlaschke@users.noreply.github.com>

- disable modal Next button if data not valid

- fixed validation for Forms

- fixed Sport Modals
- added connection for Boattype except sport column
- connected select in CheckIn
- cleaned up logs
- fixed compiling warnings

Merge branch '31-connect-fronted-to-backend' of git.imp.fu-berlin.de:swp-ws21-fahrtenbuch/team-einhorn/fahrtenbuch into 31-connect-fronted-to-backend

Merge branch '31-connect-fronted-to-backend' of git.imp.fu-berlin.de:swp-ws21-fahrtenbuch/team-einhorn/fahrtenbuch into 31-connect-fronted-to-backend

Co-authored-by: Alexander Rudolph <drblaui@users.noreply.github.com>
Co-authored-by: brendanlaschke <brendanlaschke@users.noreply.github.com>

This fixes the failing requests to non-existent locales

- fixed some translations
- sports connection (partial)

GUI Improvements

Closes #27 and #25

See merge request swp-ws21-fahrtenbuch/team-einhorn/fahrtenbuch!24

Resolve "Add missing attributes to database"

Closes #29

See merge request swp-ws21-fahrtenbuch/team-einhorn/fahrtenbuch!23

# Conflicts:
#   server/src/server.ts