Multilang: add German (#26411)

* initialize de_DE file

* German translation (#83)

Formatting will be an issue!

* update de_DE qm file

* Update main_de.ts

Fixed the German translations

* regen translations

* Fix typo (#84)

* regen translations

* Update selfdrive/ui/translations/main_de.ts

Co-authored-by: Kurt Nistelberger <kurt.nistelberger@hotmail.com>

* we don't keep these in-tree anymore?

* Update main_de.ts

Neue Strings ergänzt

* update plurals

* remove vanished, add new strings

* don't translate a brand/service name

* capitalize some things, cleanup

* capitalize

* more cleanup, mark too-long strings

* proper (no) capitalization, line wrap

* Update selfdrive/ui/translations/main_de.ts

Co-authored-by: Shane Smiskol <shane@smiskol.com>

* update translation strings

* Updating the German translation (#89)

Added new strings and shortened others to fit the UI

* compromises for better button fit

Co-authored-by: Vrabetz <mpell@web.de>
Co-authored-by: CzokNorris <czoknorris@me.com>
Co-authored-by: Kurt Nistelberger <kurt.nistelberger@hotmail.com>
Co-authored-by: Shane Smiskol <shane@smiskol.com>

selfdrive/ui/translations/languages.json

@@ -1,5 +1,6 @@
 {
   "English": "main_en",
+  "Deutsch": "main_de",
   "Português": "main_pt-BR",
   "中文（繁體）": "main_zh-CHT",
   "中文（简体）": "main_zh-CHS",