feat: Suspend new users on registration

conduwuit-example.toml

@@ -398,6 +398,17 @@
 #
 #allow_registration = false
 
+# If registration is enabled, and this setting is true, new users
+# registered after the first admin user will be automatically suspended
+# and will require an admin to run `!admin users unsuspend <user_id>`.
+#
+# Suspended users are still able to read messages, make profile updates,
+# leave rooms, and deactivate their account, however cannot send messages,
+# invites, or create/join or otherwise modify rooms.
+# They are effectively read-only.
+#
+#suspend_on_register = false
+
 # Enabling this setting opens registration to anyone without restrictions.
 # This makes your server vulnerable to abuse
 #