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Maria Hutt 7871b56ecc fix(angular): add missing menu controller methods (#28618)
Issue number: resolves #20053 

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## What is the current behavior?
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There are a few methods that that are missing for the menu in the
Angular packages. This leads to users to not being able to use methods
like `isAnimating()`.

## What is the new behavior?
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this PR. -->

- The missing methods have been added by implementing `MenuControllerI`.

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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and migration path for existing applications below. -->


## Other information

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screenshots of how the component looks before and after the change. -->

Dev build: 7.5.8-dev.11701461830.1be851fd
2023-12-05 18:43:12 +00:00
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