Experimental Alert

[mark-drastrup]

Which issue does this PR close?

This PR closes #2855

What is the new behavior?

An experimental alert that is meant to replace the current alert in a couple of major releases. This alert is its own secondary entry and doesn't rely on the modal controller, like the current alert. Additionally, it is now possible to subscribe to the onWillDismiss and onDidDismiss events to obtain data back from the alert, instead of providing a callback.

Does this PR introduce a breaking change?

• Yes
• No

Are there any additional context?

Checklist:

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Reminders

• Make sure you have implemented tests following the guidelines in: "The good: Test".
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Review

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When the pull request has been approved it will be merged to develop by Team Kirby.