Feature request: Add a broadcast delay

[Razuuu]

Is your feature request related to a problem? Please describe. Not really a problem but i don't want to have my chat filled with votes every few seconds.

Describe the solution you'd like Add a Config entry with BroadcastDelayInMinutes where we can enter a number (in minutes ofc), which 0/-1 is disabled and >= 1 is used as a minute.

When broadcasting multiple sites at once, sent it like this, otherwise fallback to its default entry.

(Current BroadcastMsg)
- Sitename 1
- Sitename 2
- Sitename 3

Describe alternatives you've considered /

Additional context Thanks for making this plugin and if this feature request will be added soon, this will be very nice!