Required translations to FR, DE for GalleryFileUploadBehavior.properties

max.number.of.files.exceeded.widget=Maximum number of files exceeded. Please remove extra files.
max.number.of.files.exceeded=Maximum number of files exceeded
max.filesize.message=File is too large. The maximum allowed file size is {0}
invalid.extension.message=Extension is not allowed. Allowed extensions are {0}