de-DE: Apply #2572, #2578, add STR_6530

[Wuzzy2]

Applying for issue(s):

• String 6545, 6546 #2572
• String 6547 #2578

Also adds STR_6530, which was missing (see #2509).

[github-actions]

Check results

For details go to Translation Check -> Details. Expand Run checks build stage and use the build-in search to find your language (e.g. pl-PL)

	Missing The translation is not added to translation file. (e.g. STR_9999 is in en-GB but is not available in given language)	Not needed The translation file contains entries that are not in en-GB and should be removed (e.g. STR_9999 exits in given language but is not in en-GB)	Same The translation and source string is exactly the same. (e.g. STR_9999 is Umbrella in both en-GB and given language). This may be desired in some cases (e.g. April is the same in English and German)
de-DE	0 (-4)	0	350 (+1)

Other translations

	Missing The translation is not added to translation file. (e.g. STR_9999 is in en-GB but is not available in given language)	Not needed The translation file contains entries that are not in en-GB and should be removed (e.g. STR_9999 exits in given language but is not in en-GB)	Same The translation and source string is exactly the same. (e.g. STR_9999 is Umbrella in both en-GB and given language). This may be desired in some cases (e.g. April is the same in English and German)
ar-EG	26	1	1955
ca-ES	9	0	113
cs-CZ	336	0	246
da-DK	74	0	484
en-US	3332	0	390
eo-ZZ	0	0	88
es-ES	1	0	300
fi-FI	108	0	109
fr-CA	3915	0	0
fr-FR	0	0	159
hu-HU	114	0	114
it-IT	85	0	300
ja-JP	251	0	608
ko-KR	0	0	193
nb-NO	263	0	2164
nl-NL	0	12	445
pl-PL	93	0	381
pt-BR	0	0	144
ru-RU	1258	0	111
sv-SE	115	0	341
tr-TR	314	0	395
vi-VN	173	2	3261
zh-CN	0	0	81
zh-TW	69	0	332