Adds Hungarian translation (#4552)

src-ui/angular.json

@@ -29,6 +29,7 @@
           "es-ES": "src/locale/messages.es_ES.xlf",
           "fi-FI": "src/locale/messages.fi_FI.xlf",
           "fr-FR": "src/locale/messages.fr_FR.xlf",
+          "hu-HU": "src/locale/messages.hu_HU.xlf",
           "it-IT": "src/locale/messages.it_IT.xlf",
           "lb-LU": "src/locale/messages.lb_LU.xlf",
           "nl-NL": "src/locale/messages.nl_NL.xlf",