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/helpers/date_range_helper.rb

@@ -7,7 +7,7 @@ module DateRangeHelper
   def range
     return if params[:since].blank? || params[:until].blank?
 
-    parse_date_time(params[:since])..parse_date_time(params[:until])
+    parse_date_time(params[:since])...parse_date_time(params[:until])
   end
 
   def parse_date_time(datetime)