This also moves the CLJS output out of `frontend/src/cljs{,_release}` to
`target/cljs_{dev,release}`. If that causes problems for FE tooling I
don't know about, it could be moved back.

Hot reloading:
CLJS changes are hot-reloaded into the running app by Shadow CLJS - no
action is needed. Note that the UI will not refresh; you usually have to
click around so the updated MLv2 code gets executed.

Usage of the CLJS REPL:
- Open the browser (you should see `shadow-cljs: #N ready!` in console)
- Connect to nrepl on 50655
- "Select" the `:app` build;
    - https://shadow-cljs.github.io/docs/UsersGuide.html#_editor_integration
    - Conjure: `:ConjureShadowSelect app`
    - Plain REPL: Eval in CLJ mode `(shadow/repl :app)`
- Consider running `yarn build-hot:cljs` and `yarn build-hot:js` in
  separate terminals; then when `yarn build-hot:js` crashes you don't
  have to reconnect your REPL.
- The REPL works beautifully, even load...

* Fix tsconfig errors

* fixup! Fix tsconfig errors

---------

Co-authored-by: Jesse Devaney <22608765+JesseSDevaney@users.noreply.github.com>

Previously, JS files isn't picked up by VS Code, so they'll have limited
intellisence. Also, Jest and Cypress has conflicting names e.g.
`describe` or `expect`. So, this commit attempt to resolve that as well.

* Register new E2E path alias

* Move E2E support files

* Move E2E runner files

* Move E2E snapshot related files

* Move E2E visual regression tests

* Move E2E `downloads` scenarios

* Move E2E `admin` scenarios

* Move E2E `auditing` scenarios

* Move E2E `bining` scenarios

* Move E2E `ccollections` scenarios

* Move E2E `cross-version` scenarios

* Move E2E `custom-column` scenarios

* Move E2E `dashboard` scenarios

* Move E2E `dashboard-filters` scenarios

* Move E2E `dashboard` reproductions

* Move E2E `embedding` scenarios

* Move E2E `filters` scenarios

* Move E2E `joins` scenarios

* Move E2E `models` scenarios

* Move E2E `native-filters` scenarios

* Move E2E `native` scenarios

* Move E2E `onboarding` scenarios

* Move E2E `organization` scenarios

* Move E2E `permissions` scenarios

* Move E2E `question` scenarios

* Move E2E `visualizations` scenarios

* Move E2E `sharing` scenarios

* Move E2E `docker-compose`

* Fix commands imports

* Fix helpers imports

* Fix downloads reproductions imports

* Fix integration imports

* Move visual regression tests

* Various fixes

* Move `validate-e2e-files` script

* Add eslint rules for E2E folder

* Improve file paths

* Move `cross-version` tests into scenarios

* Path fixes

* Register E2E alias in tsconfig

* Fix failing tests after rebase

* Remove not used `StaticEntitiesProvider`

* Fix typos

* Convert sample database fixture to TypeScript

* Fix `EnhancedState` typing

* Remove global eslint comment

* Fix invalid import

* Fix incorrect type

* tune admin nav and remove premium embedding offer

* update SecretKeyWidget style

* add funnel static viz

* prettier

* support funnel formatting options, change measureText signature

* fix tests

* fix types

* unhardcode legend text style

* decrease static funnel step font size, fix warnings

* update specs

* set `allowJs` to true in tsconfig. This allows TS to infer types from JS files

* added decorators

* add basic typescript configuration

* convert a tiny hook use-debounced-value to typescript

* allow any for now?

* update terser and static viz configs

* adjust config

* change extension of QuestionActivityTimeline from jsx to js to match jest config

* adjust config

* skip failing tests

* Fix missing question method in unit tests (#18314)

* review fix

* fix

Co-authored-by: Anton Kulyk <kuliks.anton@gmail.com>