Fix STR_6603 in de-DE

[Sadret]

'Eingang' means 'entrance' but not 'entry' in the sense of an index entry.

[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 exists 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	4	1	359

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 exists 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	126	2	1913
ca-ES	0	1	123
cs-CZ	445	0	248
da-DK	35	0	564
en-US	3407	0	392
eo-ZZ	0	1	92
es-ES	0	1	307
fi-FI	16	1	117
fr-CA	3992	0	0
fr-FR	14	1	167
hu-HU	4	0	123
it-IT	13	1	346
ja-JP	361	1	607
ko-KR	0	1	197
nb-NO	35	0	483
nl-NL	3	13	481
pl-PL	203	1	408
pt-BR	0	1	151
ru-RU	1367	0	111
sv-SE	118	1	353
tr-TR	424	1	382
uk-UA	45	34	1139
vi-VN	283	3	3226
zh-CN	10	1	35
zh-TW	178	0	333