[ECR] [Console]: add back an option to display column "Vulnerabilities" in image-list of repository

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### Console functionality: Add back an option to display column "Vulnerabilities" in image-list of repository

**Tell us about your request**
Within the new ECR console experience, the column "Vulnerabilities" has been removed. Please add it back.

**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?**
Our team liked the overview by having column "Vulnerabilities" in image-list of repository.

**Before the change in the console:**

**Current experience in the console:**

* Currently there is no option a add the column "Vulnerabilities". It has been before and helped a lot.
* There should be an optional capability to activate this column, e.g using the Preferences dialog (gearwheel)

**Are you currently working around this issue?**
While working in the console, we have to click on each image to check for vulnerabilities.

**Additional context**
We are using ECR Basic Scan to check for vulnerabilities in our (private) ECR repos.

No repository files, tests, or implementation entry points are named. Start by checking the current ECR console experience and the issue's status, then determine whether an optional Vulnerabilities column in the repository image-list Preferences is still required. Done means users can enable that column and see vulnerability information without opening each image.

Written by the indexing model from the issue text.