[ECR] [request]: Display image OS and architecture in ECR Console

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**Tell us about your request**
What do you want us to build?

In the ECR console I would like to be able to see OS and architecture for an image in the console.

**Which service(s) is this request for?**
ECR

**Tell us about the problem you're trying to solve. What are you trying to do, and why is it hard?**
What outcome are you trying to achieve, ultimately, and why is it hard/impossible to do right now? What is the impact of not having this problem solved? The more details you can provide, the better we'll be able to understand and solve the problem.

Our team is using amd64 and arm64 images it is difficult to determine which image in the console corresponds to the appropriate architecture without having to do something like the following

```
aws ecr batch-get-image --repository-name node --image-id imageTag=latest --accepted-media-types "application/vnd.docker.distribution.manifest.v1+json" --output json
```

The console experience when using ECR with mulit-arch images is quite poor and could use some improvement.

**Are you currently working around this issue?**
How are you currently solving this problem?
We aren't

**Additional context**
Anything else we should know?

**Attachments**
If you think you might have additional information that you'd like to include via an attachment, please do - we'll take a look. (Remember to remove any personally-identifiable information.)

Start by reviewing the ECR console experience for multi-architecture images and the aws ecr batch-get-image command shown in the issue. Determine where image OS and architecture metadata is available and how it should appear in the console. Done means users can distinguish amd64 and arm64 images without using the CLI.

Written by the indexing model from the issue text.