Email analytics dashboard

* Analytics queries in mail logic; EmailAnalytics component; EmailAnalytics comp. integration with broadcast mail screen

* WIP: Adding analytics tabs to broadcasts and sequences

* Improve sequence composition screen

* The select component fix

* Better title

* docs for analytics

* CodeQL fixes

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Co-authored-by: Rajat Saxena <hi@rajatsaxena.dev>

Author: rajat1saxena