Updates for project Trekarta and language de on branch master (#274)

* Translate strings.xml in de

92% of minimum 80% translated source file: 'strings.xml'
on 'de'.

Sync of partially translated files: 
untranslated content is included with an empty translation 
or source language content depending on file format

* Translate strings.xml in de

100% translated source file: 'strings.xml'
on 'de'.

* Translate title.txt in de

100% translated source file: 'title.txt'
on 'de'.

* Translate short_description.txt in de

100% translated source file: 'short_description.txt'
on 'de'.

* Translate full_description.txt in de

100% translated source file: 'full_description.txt'
on 'de'.

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Co-authored-by: transifex-integration[bot] <43880903+transifex-integration[bot]@users.noreply.github.com>