The /magnolia-ui-admincentral/src/main/resources/mgnl-i18n/uploadField-messages_en.properties contains redundant strings for
image, video, audio, flash etc.
Their should rather be translations for each of these media types,
and then the rest of the strings shoudl accept it as a variable.

The code fix is probably in BasicUploadField#getCaption

Probably we need to also i18n-ize the captionExtension - that is - use it as a key to get translations for the filetypes.

We need to avoid some pitfalls in this though as some wording changes depending on whether the file name starts with an A.

Updated version:

1. Video Upload text
   CHANGE*** field.upload.select.new = Select {0} to upload...
   field.upload.select.another = Upload a new {0}

   ...
   field.upload.select.edit = Edit

   {0}...
   CHANGE*** field.upload.drop.hint = or <em>drag {0}

   into this area</em> to upload it
   field.upload.file.detail.header =

   {0} detail
   field.upload.note.success = Your {0}

   has been uploaded successfully<br>

   {0}
   field.upload.note.warning = The upload of your {0}

   was aborted due to<br>

   {0}
   field.upload.note.error = An error occurred while uploading your {0}

   <br>

   {0}
   
   
   Old version
   # Video Upload text
   field.upload.select.new.video = Select a video to upload...
   field.upload.select.another.video = Upload a new Video...
   field.upload.select.edit.video = Edit video...
   field.upload.drop.hint.video = or <em>drag a video into this area</em> to upload it
   field.upload.file.detail.header.video = Video detail
   field.upload.note.success.video = Your video has been uploaded successfully<br>{0}

   field.upload.note.warning.video = The upload of your video was aborted due to<br>

   {0}
   field.upload.note.error.video = An error occurred while uploading your video<br>{0}