Re-write broken eslint plugin svelte-check-props

The eslint plugin svelte-check-props we developed in the eslint-plugin package allowed us to validate that bootstrap svelte components were properly connecting core events to bindable props.

However, this plugin has been broken since Svelte 5 migration and changes to the api (no patch method exported from `callWidgetFactory` for example).

Goal of this PR would be fully rewrite the plugin.