refactor(core): Replay events queued in the event contract.

[iteriani]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/angular/angular/blob/main/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• angular.io application / infrastructure changes
• Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No

Other information

[AndrewKushnir]

@iteriani looks great, just left a few comments.

[AndrewKushnir]

Reviewed-for: public-api

[AndrewKushnir]

Presubmit.

[AndrewKushnir]

Caretaker note: this PR requires landing this CL first.

[AndrewKushnir]

Caretaker note:

• Prerequisite CL has landed.
• Presubmit is "green".
• The "requires: TGP" label was added earlier, when this PR contained another commit to update JSAction code. The JSAction change has landed in a separate commit earlier, so the label is no longer relevant.
• This PR is ready for merge.

[AndrewKushnir]

For documentation purposes: there was a minor change to the key_code.ts from JSAction as a code optimization (to avoid including it into the client bundle). This code was moved to a separate PR (#55499), so no TGP is needed for this one.

[AndrewKushnir]

This PR was merged into the repository by commit 811fe00.

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