Delete sent stories when you turn off stories

ts/util/deleteAllMyStories.ts

@@ -0,0 +1,15 @@
+// Copyright 2022 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { deleteStoryForEveryone } from './deleteStoryForEveryone';
+
+export async function deleteAllMyStories(): Promise<void> {
+  const { stories } = window.reduxStore.getState().stories;
+  const myStories = stories.filter(story =>
+    Boolean(story.sendStateByConversationId)
+  );
+
+  await Promise.all(
+    myStories.map(story => deleteStoryForEveryone(stories, story))
+  );
+}