Truncates package version in packages list page

What does this MR do and why?

Truncates package version in packages list page

Few other fixes:

• Aligns version to center on mobile widths
• Remove unnecessary HTML elements created by list_item.vue

Screenshots or screen recordings

Before	After

How to set up and validate locally

• Open the rails console

  rails c

• Find one of your GDK projects. Project id can be found on the project home page

  p = Project.find(1)

• Creates generic package with long version name

  FactoryBot.create(:generic_package, project: p, version: 'production-ee-e4405b4c3a0322db41d4258a3aae75bac25e7f13c6e1d0438d1c7b67e3229630')

• Add this line if above fails during the creation of files

   def fixture_file_upload(*args, **kwargs)
     Rack::Test::UploadedFile.new(*args, **kwargs)
   end

• Visit package registry list page for groups & projects.

• Version number should be truncated if its long

• You can try creating different packages following https://gitlab.com/gitlab-org/ci-cd/package-stage/package/-/wikis/Packages-Tips-&-Tricks

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.

Closes #368907 (closed)