feat: conversation participants (#4145)

Fixes #241
Fixes: chatwoot/product#648

Co-authored-by: Aswin Dev P.S <aswindevps@gmail.com>
Co-authored-by: Nithin David Thomas <1277421+nithindavid@users.noreply.github.com>
Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>
Co-authored-by: Pranav Raj S <pranav@chatwoot.com>

app/javascript/dashboard/helper/URLHelper.js

@@ -56,6 +56,8 @@ export const conversationUrl = ({
     url = `accounts/${accountId}/custom_view/${foldersId}/conversations/${id}`;
   } else if (conversationType === 'mention') {
     url = `accounts/${accountId}/mentions/conversations/${id}`;
+  } else if (conversationType === 'participating') {
+    url = `accounts/${accountId}/participating/conversations/${id}`;
   } else if (conversationType === 'unattended') {
     url = `accounts/${accountId}/unattended/conversations/${id}`;
   }