Hides dependency proxy extra loader while paginating

What does this MR do and why?

Hides dependency proxy loading state while paginating

Fixes issue introduced in !125038 (merged)

Screenshots or screen recordings

Notice the loader at the top in the before screen recording

Before	After
Screen_Recording_2023-07-12_at_4.16.07_pm	Screen_Recording_2023-07-12_at_4.13.45_pm

How to set up and validate locally

1. Enable dependency proxy on GDK.
2. Visit Gitlab-org Group > Packages and registries > Dependency proxy
3. Should be able to see updated empty state
4. Assuming 172.16.123.1:3000/gitlab-org/dependency_proxy/containers is the Dependency proxy image prefix on the page, run the following on the terminal:

   versions=("latest" "1.33.1" "1.33" "1.32.1" "1.32" "1.31.1" "1.31" "1.30.1" "1.30" "1.29.3" "1.29.2" "1.29.1" "1.29" "1.28.4" "1.28.3" "1.28.2" "1.28.1" "1.28" "1.27.2" "1.27.1" "1.27" "1.26.2" "1.26.1" "1.26" "1.25.1"); proxy_url="172.16.123.1:3000/gitlab-org/dependency_proxy/containers"; for version in "${versions[@]}"; do docker pull "${proxy_url}/busybox:${version}"; done

   `

MR acceptance checklist

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

Fixes #343968 (closed)