Add feature usage observer

[Soare-Robert-Daniel]

Summary

• Enabled the SDK telemetry for this product.
• The plugin settings are tracked via the Form submit event.
• Added block options tracking.

Also added the toggle for Telemetry since WP does not want telemetry by default.

Testing

• Enable Telemetry in the settings.
• Check if something is broken.
• Post the test instance URL so we can check in the metabase for the saved events.

[pirate-bot]

Plugin build for 858d857 is ready 🛎️!

• Download build

[GrigoreMihai]

Apart from the comment mentioned everything looks good.

[vytisbulkevicius]

@Soare-Robert-Daniel, do you think we can integrate the question about agreeing to enable Telemetry into the onboarding steps of Feedzy also? (and make it enabled if they agree)

I think it's quite a low chance for users to go in there in Settings and enabling on purpose it without us pointing to it in any way/asking them.

[Soare-Robert-Daniel]

@Soare-Robert-Daniel, do you think we can integrate the question about agreeing to enable Telemetry into the onboarding steps of Feedzy also? (and make it enabled if they agree)

@vytisbulkevicius, We can do something like this for Import Post Onboarding.

[Soare-Robert-Daniel]

@vytisbulkevicius I added it like this:

[vytisbulkevicius]

Perfect, thanks @Soare-Robert-Daniel

[vytisbulkevicius]

@preda-bogdan, please give a look at this one if you have any suggestions, looking to include it in the release today. Thanks! 🙏

[pirate-bot]

🎉 This PR is included in version 4.3.3 🎉

The release is available on GitHub release

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