Update translations related to vote feature. Code variables not changed.

Thanks to xet7 !

Related https://github.com/wekan/wekan/pull/3048

i18n/en.i18n.json

@@ -166,9 +166,9 @@
   "cardStartVotingPopup-title": "Start a vote",
   "positiveVoteMembersPopup-title": "Proponents",
   "negativeVoteMembersPopup-title": "Opponents",
-  "allowNonBoardMembers": "Allow non board members",
+  "allowNonBoardMembers": "Allow anonymous vote on public board",
   "vote-question": "Voting question",
-  "vote-public": "Public vote",
+  "vote-public": "Show who voted what",
   "vote-for-it": "for it",
   "vote-against": "against",
   "cardDeletePopup-title": "Delete Card?",