fix(i18n): auto-translate housekeeping keys via existing translation pairs

For each language, ~55 housekeeping keys that were English fallbacks have
been translated by matching against existing translations in the same file.
Remaining ~35 keys per language stay as English fallbacks where no
existing translation pair was available in that locale.

src/messages/nl.json

@@ -1936,7 +1936,7 @@
 				"tabManage": "Beheer",
 				"tabImport": "Importeren / Exporteren",
 				"tabRanks": "Rangenoverzicht",
-				"tabPresets": "Presets",
+				"tabPresets": "Voorinstellingen",
 				"tabTest": "Test",
 				"tabAudit": "Auditlog",
 				"importPermissions": "Permissies importeren",