* feat(ts): update to typescript 4

- replace all ts-ignore by ts-expect-error
- remove ignores that were no longer needed
- make ignored imports work more efficiently

* fix(ts): use inferred type for search client

* fix(ts): keep comments on imports

* chore(ci): update linting dependencies

* chore(lint): add dep

* chore(ts): make all lint rules pass

* chore(tsc): fix nits

* chore(ts): nicer v3 interop

* consistent naming

* chore: improve types

* chore: update test

* chore(e2e): undo free shipping change

* chore: avoid global

* chore: avoid ignore

* chore: avoid {}

* chore: avoid ignores

* feat(ts): convert connectRefinementList, refinementList

- changed how the searchbox templates are done to be easier to type and code
- did not migrate RefinementList component
- moved prepareTemplateProps tests
- fixed a typo in prepareTemplateProps tests

* chore: fix lint

We need to declare the type to jest.fn() so that the return type of getInitializedWidget doesn't get tainted and becomes any[]

* feat(ts): convert stats, connectStats

* Add type for `Relevant Sort` response

Co-authored-by: Haroen Viaene <hello@haroen.me>

* fix(createURL): correctly remove page in state

fixes algolia/vue-instantsearch#932

* undo stale state change in breadcrumb

* test(ratingmenu): avoid testing details

* feat(metadata): expose client's user agent

The user agent can be used to inspect whether the client is using InstantSearch.js via an integration like Vue InstantSearch or Angular InstantSearch

* ci(tsc): ignore this file for v3

* easier tests

This reverts commit f02416c.

* chore: release v4.18.0

* remove reverted change