Adds page URL params for dependency proxy pagination

What does this MR do and why?

• Adds vue-router to dependency proxy.
• On pagination change, push query params to URL.
• watch $route so that components are updated when URL is updated

Screenshots or screen recordings

Before	After
Pagination is not persisted in the URL	Screen_Recording_2023-08-24_at_12.09.42_pm

How to set up and validate locally

Setup

1. Enable dependency proxy on GDK.
2. Visit Gitlab-org Group > Packages and registries > Dependency proxy
3. 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

4. Refresh the page to see the images & pagination

Validation

1. Pagination should work & url should be updated.
2. Refreshing the page with pagination should show the same list
3. Pagination using the browser back should render the paginated page.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

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

Related to #416932 (closed)