See [mozilla.components.lib.state.Store](https://github.com/mozilla-mobile/firefox-android/blob/main/android-components/components/lib/state/src/main/java/mozilla/components/lib/state/Store.kt)
Holds app State.
Holds app State.
Receives [Actions](#action), which are used to compute new State using [Reducers](#reducer) and can have [Middlewares](#middleware) attached which respond to and manipulate actions.