Init local state for remote megaphones

app/attachment_channel.main.ts

@@ -52,6 +52,7 @@ import {
   deleteAllBadges,
   deleteAllDownloads,
   deleteAllDraftAttachments,
+  deleteAllMegaphones,
   deleteAllStickers,
   deleteStaleDownloads,
   getAllAttachments,
@@ -298,6 +299,11 @@ async function cleanupOrphanedAttachments({
     pathsToKeep: await sql.sqlRead('getAllBadgeImageFileLocalPaths'),
   });
 
+  await deleteAllMegaphones({
+    userDataPath,
+    pathsToKeep: await sql.sqlRead('getAllMegaphoneImageLocalPaths'),
+  });
+
   const allStickers = await getAllStickers(userDataPath);
   const orphanedStickers = await sql.sqlWrite(
     'removeKnownStickers',