Update translation files

Updated by "Cleanup translation files" add-on in Weblate.

Translation: Interstellar/Interstellar
Translate-URL: https://hosted.weblate.org/projects/interstellar/interstellar/

Author: weblate

lib/l10n/app_de.arb

@@ -272,8 +272,6 @@
     "@settings_colorScheme_outerSpace": {},
     "settings_colorScheme_blueWhale": "Blauwal",
     "@settings_colorScheme_blueWhale": {},
-    "settings_customLanguageFilter": "Benutzerdefinierter Sprachfilter",
-    "@settings_customLanguageFilter": {},
     "settings_alwaysShowInstance": "Immer Instanz zeigen",
     "@settings_alwaysShowInstance": {},
     "unsupportedSoftware": "{host} verwendet nicht unterstützte Software",