object WebExtensionSupport (source)
Note that this class can be removed once the browser-state migration is completed and the WebExtensionRuntime (engine) has direct access to the BrowserStore: https://github.com/orgs/mozilla-mobile/projects/31
Awaits for completion of the initialization process (completes when the state of all installed extensions is known).
Registers a listener for web extension related events on the provided WebExtensionRuntime and reacts by dispatching the corresponding actions to the provided BrowserStore.
Marks the provided updatedExtension as updated in the store.
Loads a file from the resources folder and returns its content as a string object.