Simplify translation_check.py to dump once per language

[tupaschoal]

This prints the summary for each language only once, which makes it easier for maintainers to check what they need to do and should greatly reduce the size of the CI job log

[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)

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	277	2	1728
ca-ES	18	0	91
cs-CZ	0	0	150
da-DK	13	1	324
de-DE	11	0	147
en-US	3453	0	1
eo-ZZ	2	0	72
es-ES	8	0	166
fi-FI	97	1	95
fr-CA	3618	0	0
fr-FR	2	0	144
gl-ES	2	1	94
hu-HU	0	1	95
it-IT	20	0	138
ja-JP	97	1	121
ko-KR	0	0	95
nb-NO	186	1	162
nl-NL	11	0	184
pl-PL	60	0	99
pt-BR	0	0	142
ru-RU	0	0	118
sv-SE	8	1	161
tr-TR	515	1	98
uk-UA	181	34	719
vi-VN	25	0	117
zh-CN	8	0	36
zh-TW	44	0	115

[tupaschoal]

For reference, here are two runs with and without PR
log_with_PR.txt: 290KB, 298 lines
log_without_PR.txt: 1058KB, 14256 lines