Unify EE and CE frontend code bases

add env var config to enable tracing, plus add some additional logging around db migration

* Switch Cypress snapshot generation to just use API calls directly

* Log when user added/removed from group during sync

* Ensure that user ID is logged

... instead of bad string representation of user model instances.

* Add a couple notes to the SAML docs regarding encrypted IdP responses and keystore settings.

* Add MySQL latest, MariaDB 10.2, and MariaDB latest to CI [ci mysql]

* Add upper limit to number of results returned by GET /api/search endpoint

* Rewrite tests in metabase.api.search-test to use new style

* Rework DB & test component init code so they can be retried after failing without having to restart REPL/redefine vars

* Log application DB product/version info; include in troubleshooting info

* Log DB version info when starting tests

Merge this week's changes in release-0.34.x into master

* Fix logic for getting card database/table when using nested queries. Resolves #11496

* Add tests for fix 



Co-authored-by: Cam Saul <1455846+camsaul@users.noreply.github.com>

* Move Liquibase code to different namespace

* Append ENGINE/CHARACTER SET/COLLATE to all MySQL CREATE TABLE statements
[ci mysql]

* Test fixes; make sure read-column impls check for nil [ci drivers]

Cleanup question details form + add isEditable check for summarize button and editable row limit (#11720)

* Make drill-thru touch-friendly

* Prettier

* Remove row hover and text-medium, since it's a link

* Dust off that lint

* Link entire row, except the icon

* prettier

Co-authored-by: Cam Saul <1455846+camsaul@users.noreply.github.com>