Adding section on sponsorpage

Adding a new section to the sponsor page showing invites the guests have not responded to.

frontend/public/locales/en/common.json

@@ -58,6 +58,12 @@
   "activeGuests": "Your active guests",
   "activeGuestsDescription": "Make changes to your existing guests",
   "noActiveGuests": "No active guests",
+  "sentInvitations": "Sent invitations",
+  "sentInvitationsDescription": "Invitations awaiting response from guest.",
+  "noInvitations": "No invitations",
+  "status": "Status",
+  "active": "Active",
+  "expired": "Expired",
   "details": "Details",
   "nationalIdNumber": "National ID number",
   "validation": {