Change list creation command to also protect the new room

https://github.com/matrix-org/mjolnir/issues/370

src/commands/CreateBanListCommand.ts

@@ -32,6 +32,7 @@ export async function execCreateListCommand(roomId: string, event: any, mjolnir:
 
     const roomRef = Permalinks.forRoom(listRoomId);
     await mjolnir.watchList(roomRef);
+    await mjolnir.addProtectedRoom(listRoomId);
 
     const html = `Created new list (<a href="${roomRef}">${listRoomId}</a>). This list is now being watched.`;
     const text = `Created new list (${roomRef}). This list is now being watched.`;