:recycle!: Normalize UDN comparison and improve WebRenderer detection

- Fix renderer filtering logic to normalize `udn` and id by stripping 'uuid:' prefix
- Replace fragile model_name-based detection with reliable friendly-name check for WebRenderers ('Web Audio – ' prefix)
- Add `manufacturer` field to renderer types and registry
- Update badge count in UnifiedControlView.vue to use filtered renderers

pmoapp/webapp/src/composables/useRenderers.ts

@@ -63,6 +63,7 @@ function ensureSSEInitialized() {
         id: rendererId,
         friendly_name: event.friendly_name,
         model_name: event.model_name,
+        manufacturer: event.manufacturer,
         protocol: "upnp", // Valeur par défaut, sera mise à jour par le fetch
         capabilities: {
           has_avtransport: false,