bugfix(#721): Ignore counting user messages with event (#844)

- Admin panel needs actual user message count to trigger notification sounds and toasts. When user reads admin message, "message-read" event is inserted to message table on user's behalf. This should not count as user message.

Co-authored-by: Sander Sepp <[email protected]>

DSL/Resql/get-cs-all-active-chats.sql

@@ -25,7 +25,7 @@ FulfilledMessages AS (
 ),
 MessageWithContent AS (
   SELECT MAX(id) AS maxId
-  FROM message 
+  FROM message
   WHERE content <> ''
   GROUP BY chat_base_id
 ),
@@ -46,7 +46,7 @@ MessagaeNotRatingOrForwardEvents AS (
   GROUP BY chat_base_id
 ),
 ActiveChats AS (
-  SELECT 
+  SELECT
       base_id,
       customer_support_id,
       customer_support_display_name,
@@ -97,6 +97,7 @@ CustomerMessages AS (
     SELECT chat_base_id, COUNT(id) AS messages_count
     FROM message
     WHERE message.author_role = 'end-user'
+    AND (message.event = '' OR message.event IS NULL)
     GROUP BY chat_base_id
 )
 SELECT c.base_id AS id,