feat(richtext-lexical): expose client config to client features

[AlessioGr]

This PR exposes the ClientConfig as an argument to the lexical ClientFeature. This is a requirement for #10905, as we need to get the ClientBlocks from the clientConfig.blocksMap if they are strings.

Example

export const BlocksFeatureClient = createClientFeature(
  ({ config, featureClientSchemaMap, props, schemaPath }) => { // <= config is the new argument
  	
  	// Return ClientFeature
})