[feature] Add phone number filter when using webhook

[rtnl-ctrl]

Add whitelist and blacklist to the webhook so the regitered url could be called only on some phone number/sender name.

Thanks. Your app is awesome!

[capcom6]

Thank you for your feature request and kind words about the app!

Regarding the whitelist and blacklist functionality for webhooks, could you please clarify why filtering webhook events on your backend side isn't feasible or preferable? This information will help me better understand your use case and provide a more tailored solution.

[github-actions]

This issue is stale because it has been open for 7 days with no activity.