oleg/deltachat-ios @ fix_bg_fetch_app_crash

B. Petersen 588850ff21 fix other observers, make removeObserver more resilient by using NSObjectProtocol (see docs/ for details)		4 жил өмнө
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images	b1ffc4f8b1 update testflight link and qr code	5 жил өмнө
release-checklist.md	e913b6a0d5 update release checklist	4 жил өмнө
uiview-layout.md	588850ff21 fix other observers, make removeObserver more resilient by using NSObjectProtocol (see docs/ for details)	4 жил өмнө