Now that automerge-js is ready to go we rename it to `automerge-js` and
set the version to `1.0.1-preview.8` - which is one preview after the
currently published preview of the `automerge` package.
By moving to wasm-bindgens `bundler` target rather than using the `web`
target we remove the need for an async initialization step on the
automerge-wasm package. This means that the automerge-js package can now
depend directly on automerge-wasm and perform initialization itself,
thus making automerge-js a drop in replacement for the `automerge` JS
package (hopefully).
We bump the versions of automerge-wasm and automerge-types.
We add a script for running the js tests in `scripts/ci/js_tests`. This
script can also be run locally. We move the `automerge-js` package to
below the `automerge-wasm` crate as it is specifically testing the wasm
interface. We also add an action to the github actions workflow for CI
to run the js tests.
