Added shows to screen. Method checking if can add a show to screen at daterange.
Whole backend for show creation.
Remove previous seat adding mechanic
Add interceptor for 404 responses
Add convas on which I can draw something
Test fixes.
Basic frontend
Remove interceptor
Fix last commit
Create migration for seat x&y screen width&height
add firefox support
Extended managing screens controller -creating screen layout
adding screen width and height
Changes to seats_controller.rb
Fix merge conflict
adding width and height correction
Small screen model change to make viewing more consistent
Test fixes
Test fixes
Merge remote-tracking branch 'origin/feature/adding_shows_backend' into feature/adding_shows_backend