New translations app_en.arb (Spanish)

[ci skip]

lib/l10n/arb/app_es_ES.arb

@@ -6965,6 +6965,10 @@
   "@libraryFilterMetadataMissingLyrics": {
     "description": "Filter option for tracks without embedded or sidecar lyrics"
   },
+  "libraryFilterMetadataMissingReplayGain": "Missing ReplayGain",
+  "@libraryFilterMetadataMissingReplayGain": {
+    "description": "Filter option for scanned tracks without ReplayGain gain tags"
+  },
   "trackOptionCopyTrackName": "Copy track name",
   "@trackOptionCopyTrackName": {
     "description": "Track menu action that copies the track title"