Added UI for downloading your comment data

- Added button on profile page
- Added date when last downloaded data

graph/resolvers/user.js

@@ -12,6 +12,7 @@ const {
   LIST_OWN_TOKENS,
   VIEW_USER_STATUS,
   VIEW_USER_EMAIL,
+  VIEW_LAST_DOWNLOADED_DATE,
 } = require('../../perms/constants');
 const { property } = require('lodash');
 
@@ -64,6 +65,7 @@ decorateWithPermissionCheck(
     tokens: [LIST_OWN_TOKENS],
     profiles: [SEARCH_OTHER_USERS],
     comments: [SEARCH_OTHERS_COMMENTS],
+    lastAccountDownload: [VIEW_LAST_DOWNLOADED_DATE],
   },
   checkSelfField('id')
 );

graph/typeDefs.graphql

@@ -238,6 +238,10 @@ type User {
 
   # returns user status
   state: UserState
+
+  # lastAccountDownload is the date that the user last requested a comment
+  # download.
+  lastAccountDownload: Date
 }
 
 # UserConnection represents a paginable subset of a user list.