feat: show stream name in breadcrumbs

js/src/lib/firestore-particles.ts

@@ -3,6 +3,7 @@ import {
   doc,
   onSnapshot,
   addDoc,
+  getDoc,
   updateDoc,
   query,
   orderBy,
@@ -72,6 +73,15 @@ export function subscribeToParticle(
   );
 }
 
+export async function getParticle(docPath: string): Promise<Particle | null> {
+  const doc = await getDoc(typedDoc(docPath));
+  if (!doc.exists()) {
+    return null;
+  }
+
+  return doc.data();
+}
+
 export function subscribeToParticleChildren(
   collectionPath: string,
   onData: (children: Particle[]) => void,