Add Service Templates Deprecation Warning Banner

Problem

See parent epic for context.

Solution

Add an an Alert component to create awareness and communicate what is going to change in the next upcoming releases.

Mockup
**Copy:** Service Templates will be deprecated! We are in the process of deprecating Service Templates. Instead we are upgrading our current Integrations to allow for more control. [Go to Integrations] [Learn more] "Learn more" button should link to blog post

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