Adds package registry migration survey banner

What does this MR do and why?

Adds a banner on package registry list page which links to survey related to registry migration.

Clicking on any of the banner buttons should not show the banner again.

Screenshots or screen recordings

Without cookie

With cookie set

How to set up and validate locally

1. Visit package registry list page of project or group
2. Confirm banner exists
3. Clicking on the buttons should hide the banner & set cookie. Reloading the page should not show the banner again.
   1. Do not to take the actual survey, see note
4. Clicking on close button should hide the banner temporarily. Reloading the page should show the banner again.

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 #372960