Fix issues with controlCommands messages

[fabclj]

Success criteria

• Fixed a bug where after Rating submit, if last message is a QR, all buttons get disabled.
• Fixed a bug where after Privacy Notice submit, the messages collation feature was not working.

Both bugs are visible in this screenshot, where it was submitted the privacy message and also the rating:

How to test

1. Deploy the widget locally using this endpoint:
   https://endpoint-dev.cognigy.ai/51083847963e64f271308e3e940057f8a353b80e4a5579d96dec292202a6c236
2. Submit first the Privacy notice. The collation should work as expected
3. Open chat options and submit the rating.
4. Go back to the chat and check the QR buttons. They should be still enabled.

Compare with DEV, where you will see the bugs in action:
https://webchat-dev.cognigy.ai/v3/51083847963e64f271308e3e940057f8a353b80e4a5579d96dec292202a6c236