Update translation files

Updated by "Cleanup translation files" hook in Weblate.

Translation: CryptPad/App
Translate-URL: http://weblate.cryptpad.fr/projects/cryptpad/app/

www/common/translations/messages.pt-br.json

@@ -404,7 +404,6 @@
     "viewOpen": "",
     "viewOpenTitle": "",
     "getEmbedCode": "",
-    "viewEmbedTitle": "",
     "viewEmbedTag": "",
     "fileEmbedTitle": "",
     "fileEmbedScript": "",