Added German translations

Added German translations. In additions, translations are now loaded
when the app starts. When no translation is found, the standard ("C")
one is used.
15 jobs for 55-localization-support in 11 minutes and 13 seconds (queued for 1 second)
Status Job ID Name Coverage
  Images
manual #48597679
allowed to fail manual
build_image_fedora
manual #48597680
allowed to fail manual
build_image_fedora_system
manual #48597681
allowed to fail manual
build_image_ubuntu
manual #48597682
allowed to fail manual
build_image_win32
manual #48597683
allowed to fail manual
build_image_win64
 
  Build
passed #48597684
linux_builtin

00:03:18

passed #48597685
linux_system

00:03:52

manual #48597691
macos allowed to fail manual
macos
passed #48597686
ubuntu_appimage

00:11:12

passed #48597687
win32_build

00:05:33

manual #48597689
windows allowed to fail manual
win32_vs_build
passed #48597688
win64_build

00:06:22

manual #48597690
windows allowed to fail manual
win64_vs_build
 
  Installer
manual #48597692
allowed to fail manual
win32_vs_installer
manual #48597693
allowed to fail manual
win64_vs_installer