feat: track hashtags input usage

packages/app/src/Components/Event/Create/NoteCreator.tsx

@@ -173,6 +173,16 @@ export function NoteCreator() {
         props ??= {};
         props["zap-split"] = true;
       }
+      if (note.hashTags.length > 0) {
+        props ??= {};
+        props["hashtags"] = true;
+      }
+      if (props) {
+        props["content-warning"] ??= false;
+        props["poll"] ??= false;
+        props["zap-split"] ??= false;
+        props["hashtags"] ??= false;
+      }
       trackEvent("PostNote", props);
 
       const events = (note.otherEvents ?? []).concat(ev);