Collaborative editing (#1660)

app/utils/developer.js

@@ -0,0 +1,11 @@
+// @flow
+
+// A function to delete all IndexedDB databases
+export async function deleteAllDatabases() {
+  const databases = await window.indexedDB.databases();
+  for (const database of databases) {
+    if (database.name) {
+      await window.indexedDB.deleteDatabase(database.name);
+    }
+  }
+}