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

Connect Front- and Backend

Closes #31

See merge request swp-ws21-fahrtenbuch/team-einhorn/fahrtenbuch!25

Merge remote-tracking branch 'origin/31-connect-fronted-to-backend' into 31-connect-fronted-to-backend

- added checkin connection to Sport/Boat Model
- connected status of Boats
- show time in overview

- implemented missing logEntry Endpoints and functions /commented out delete tests
- fixed checkout title

Merge remote-tracking branch 'origin/31-connect-fronted-to-backend' into 31-connect-fronted-to-backend
- added reset Checkin

- wip cookie
- fixed login page/ staff layout flashing with login/no login

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

- uniform naming of routes and Task of route

- sequelize checkin
- fixed db tests
- status as String
- cleaned up controllers

- fixed some Translations
- fixed Boats

Merge remote-tracking branch 'origin/31-connect-fronted-to-backend' into 31-connect-fronted-to-backend

- added get to Booking Form
- check for Node_Env before altering tables
- cleaned up things already handled in sequleize (especially deleting things is already taken care of including dependencies)
- fixed tests

- started connecting Boats

- fixed scroll problems
- removed some unused/depreceated packets
- added association to db/index.ts
- added color Picker/display to sport Table