https://linear.app/unleash/issue/2-3878/persist-strategy-filter-when-going-back-from-the-release-template
Persists the strategy filter in the new "add strategy" modal when going
back from the release template preview modal.
This is done by moving the filter to the parent component, so the filter
state persists across these navigations.
Also updates the button text in the release templates preview to say
"Apply template" for consistency, but only if the `newStrategyModal`
flag is enabled.
We're migrating to ESM, which will allow us to import the latest
versions of our dependencies.
Co-Authored-By: Christopher Kolstad <chriswk@getunleash.io>
