fix(angular): warn devs that standalone components are not supported

[sean-perkins]

Pull request checklist

Please check if your PR fulfills the following requirements:

• Tests for the changes have been added (for bug fixes / features)
• Docs have been reviewed and added / updated if needed (for bug fixes / features)
  • Some docs updates need to be made in the ionic-docs repo, in a separate PR. See the contributing guide for details.
• Build (npm run build) was run locally and any changes were pushed
• Lint (npm run lint) has passed locally and any fixes were made for failures

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Other (please describe):

What is the current behavior?

When developers make use of routable standalone components with Ionic, they will receive a generic error that gives no context to the issue or current support status of the feature.

Issue URL: Internal

What is the new behavior?

• Warn developers when they attempt to use standalone components with ion-router-outlet

Does this introduce a breaking change?

• Yes
• No

Other information

Dev-build: 6.1.11-dev.11655864040.13968d31

You can test with this demo repo and the dev-build: https://github.com/sean-perkins/angular-14-demo