Clean up dashboard URL management (#44639)

* Fix falsy tabSelected/tabRenamed checks

* Update URL management (WIP)

* Fix tests failing because of whitespace changes

* Fix tests failing because of parameter order

* Use one hook for parameters and tab URL management

* Fix tests failing because of parameter order

* Fix test failing because of whitespace changes

* Revert

* Fix DashboardTabs tests

* Fix tests failing because of parameter order

* Fix test

* Fix test failing because of whitespace changes

* Remove unit tests that should be e2e tests now

* Fix tab navigation

* Fix string encoding/decoding

* Revert test changes

* Consistent question search params

* Update DashboardTabs tests

* Fix `SyncedParametersList`

* Fix e2e tests

* Fix nav usage

* Fix types

* Remove `useSyncedQueryString`

* Fix test

* Move slug utils to dashboard utils

* Fix nav

* Revert nav change

* Fix e2e tests

* Fix public/embedded dashboards, handle site url

* Add repro test

* Bring back and fix `PublicOrEmbeddedDashboardPage` tests

* Move `SyncedParametersList` to qb