fix: inconsistency in report and summary for metric counts (#6817)

* feat: include timezone offset in summary calculation

* fix: exlcude end in date range

* test: explicit end of day

* fix: test for report builder

* fix: reports.spec.js

---------

Co-authored-by: Tejaswini Chile <tejaswini@chatwoot.com>

app/javascript/dashboard/api/reports.js

@@ -40,6 +40,7 @@ class ReportsAPI extends ApiClient {
         id,
         group_by: groupBy,
         business_hours: businessHours,
+        timezone_offset: getTimeOffset(),
       },
     });
   }