Remove width from nav links

What does this MR do?

Removes width:50% from nav links class.

I opened all our pages and could not find anything broken.

Are there points in the code the reviewer needs to double check?

Test it locally and see if there is any broken navigation bar.

Screenshots (if relevant)

Does this MR meet the acceptance criteria?

• Tests
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)

What are the relevant issue numbers?

Closes #29586 (closed)