[dsc-2695] add missing label

Author: adepusiol

src/assets/i18n/en.json5

@@ -7438,6 +7438,8 @@
 
   "submission.sections.submit.progressbar.duplicates": "Potential duplicates",
 
+  "submission.sections.submit.progressbar.detect-duplicate": "Potential duplicates",
+
   "submission.sections.submit.progressbar.identifiers": "Identifiers",
 
   "submission.sections.submit.progressbar.license": "Deposit license",