Because of #26562, it is now possible to subscribe to extension update
events within the LSP store, where we can then update the Schemas sent
to the JSON LSP resulting in dynamic updates to the auto-complete
suggestions and diagnostics in settings. Notably, this means newly
installed languages and (icon) themes will auto-complete correctly as
soon as the extension is installed.
Closes#15436
Release Notes:
- Fixed an issue where autocomplete suggestions and diagnostics for
languages and (icon) themes in settings would not update when the
extension with which they were added was installed or uninstalled
This PR adds a new `ExtensionEvents` event bus that can be used to
listen for extension-related events throughout the app.
Today you need to have a handle to the `ExtensionStore` (which entails
depending on `extension_host`) in order to listen for extension events.
With this change subscribers only need to depend on `extension`, which
has a leaner dependency graph.
Release Notes:
- N/A
