fix: remove unused translation string filePanel.images

No results when searching the codebase for the string `filePanel.images`

Author: maxelkins

public/translations/en.json

@@ -26,7 +26,6 @@
       "unsupportedExtension": "File names must end in {{allowedExtensions}}."
     },
     "files": "Project files",
-    "images": "Image gallery",
     "newFileButton": "Add file",
     "newFileModal": {
       "cancel": "Cancel",

public/translations/xx-XX.json

@@ -25,7 +25,6 @@
       "unsupportedExtension": "Dateinamen müssen mit {{allowedExtensions}} enden."
     },
     "files": "Projektdateien",
-    "images": "Bildergalerie",
     "newFileButton": "Datei hinzufügen",
     "newFileModal": {
       "cancel": "Abbrechen",