German translation updated

[ghost]

I hope I got all new strings. Good that all new strings also get into the German file so I just have to look for English in it.

[ilya-murzinov]

@tehabe, there are at least 2 string that changed (not added):

• settings_min_track_elapsed_time_in_percent_desc
• settings_min_track_elapsed_time_in_seconds_desc

These I remember, but there might be others, so please check them all, some translations may not make any sense now.

[ghost]

So, I went through all commit, and checked for changed English strings and I think got all of them.

[ilya-murzinov]

Great! Thanks, @tehabe!