more columns added for metadata

Author: ankitsmt211

application/src/main/resources/db/V14__Alter_Help_Thread_Metadata.sql

@@ -1,3 +1,5 @@
 ALTER TABLE help_threads ADD ticket_status INTEGER DEFAULT 0;
 ALTER TABLE help_threads ADD tag TEXT DEFAULT 'none';
-ALTER TABLE help_threads ADD closed_at TIMESTAMP NULL;
+ALTER TABLE help_threads ADD closed_at TIMESTAMP NULL;
+ALTER TABLE help_threads ADD participants INTEGER DEFAULT 1;
+ALTER TABLE help_threads ADD message_count INTEGER DEFAULT 0;