Separates out Container Registry on project Usage Quotas

What does this MR do and why?

This MR

• separates out Container Registry entry on U/Q project page into a separate table.
• removes Container Registry from the Bar Graph at the page top.

Related to #419421

Screenshots or screen recordings

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Before	After

How to set up and validate locally

Open a local project Usage Quotas Storage page (e.g. http://127.0.0.1:3000/gitlab-org/gitlab-test/-/usage_quotas#storage-quota-tab)

If you need to mock any particular value of the project storage — you can adjust values via Rails Console:

rails c
> 
project = Project.find_by_full_path('gitlab-org/gitlab-test') # find the project
project.statistics # to see all the props that can be adjusted
project.statistics.repository_size = 42.megabytes # set one or many of the values
project.statistics.save # save the changes

Reload the page.

MR acceptance checklist

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• I have evaluated the MR acceptance checklist for this MR.