[#52717037] [#53385393] [#53050507]

Conflicts:
	Gemfile
	app/views/borrow/orders/unsubmitted_order.html.haml
	db/structure.sql
	features/borrow/bestelluebersicht.feature
	features/borrow/timeoutpage.feature
	features/borrow/verfuegbarkeit.feature
	features/step_definitions/borrow/bestelluebersicht_steps.rb
	locale/de_CH/leihs.po
	locale/leihs.pot