Add admin-only user-local setting that controls perms tutorial (#45076)

* add admin-only user-local setting that controls perms tutorial

* Adding modal and banner, user setting for dismissable banner

* copy changes

* adjust so modal only appears on data permission page

* e2e adjustments, adding banner test

* never show the modal or banner on new instances

* add test

* e2e adjustments, copy update

* more PR feedback

* move modal/banner settings & tests + clarify tests

* query for v50 migration execution works on mysql

- move changelog lookup into metabase.db.liquibase

* no race conditions in changelog-table-name

The previous implementation of this function was hitting this
liquibase issue: https://github.com/liquibase/liquibase/issues/2966



* revert changelog-table-name

- simply lookup the changlog row

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Co-authored-by: Nick Fitzpatrick <nickfitz.582@gmail.com>