feat: Trello board JSON import (#352)

Closes #27, closes #105

client/src/locales/en/core.js

@@ -92,8 +92,10 @@ export default {
       filterByLabels_title: 'Filter By Labels',
       filterByMembers_title: 'Filter By Members',
       fromComputer_title: 'From Computer',
+      fromTrello: 'From Trello',
       general: 'General',
       hours: 'Hours',
+      importBoard_title: 'Import Board',
       invalidCurrentPassword: 'Invalid current password',
       labels: 'Labels',
       language: 'Language',
@@ -201,6 +203,7 @@ export default {
       editTitle_title: 'Edit Title',
       editUsername_title: 'Edit Username',
       hideDetails: 'Hide details',
+      import: 'Import',
       leaveBoard: 'Leave board',
       leaveProject: 'Leave project',
       logOut_title: 'Log Out',