UX: better copy for bulk invite notifications

UX: better copy for bulk invite notifications

diff --git a/config/locales/server.en.yml b/config/locales/server.en.yml
index cde18d4..c75ba8d 100644
--- a/config/locales/server.en.yml
+++ b/config/locales/server.en.yml
@@ -1,14 +1,14 @@
 en:
   system_messages:
     discourse_post_event_bulk_invite_succeeded:
-      title: "Bulk Invite Succeeded"
-      subject_template: "Bulk user invite processed successfully"
-      text_body_template: "Your bulk user invite file was processed, %{processed} user(s) invited."
+      title: "Event - Bulk Invite Succeeded"
+      subject_template: "Bulk invite processed successfully"
+      text_body_template: "Your bulk invite file was processed, %{processed} invitee(s) created."
     discourse_post_event_bulk_invite_failed:
-      title: "Bulk Invite Failed"
-      subject_template: "Bulk user invite processed with errors"
+      title: "Event - Bulk Invite Failed"
+      subject_template: "Bulk invite processed with errors"
       text_body_template: |
-        Your bulk user invite file was processed, %{processed} invite(s) created with %{failed} error(s).
+        Your bulk invite file was processed, %{processed} invitee(s) created with %{failed} error(s).
 
         Here's the log:
 

GitHub sha: 2b06bc88