Navigation release 4.1.0

Updating navigation version to 4.1.0

This is related to:

• gitlab-com/marketing/digital-experience/navigation#150 (closed)
• gitlab-com/marketing/digital-experience/buyer-experience!2604 (merged)

--Reviewer Checklist:

Chrome

• Test a link in each dropdown of the desktop header (Especially login/free trial buttons)
• Test a link each section of the desktop footer (Especially Edit in IDE/Page source links)
• Test a link in each section of the mobile header
• Test a link in each section of the mobile footer
• Test search on desktop
• Test search on mobile
• Test tabbing through header links
• Test tabbing through footer links

Safari

• Test a link in each dropdown of the desktop header (Especially login/free trial buttons)
• Test a link each section of the desktop footer (Especially Edit in IDE/Page source links)
• Test a link in each section of the mobile header
• Test a link in each section of the mobile footer
• Test search on desktop
• Test search on mobile
• Test tabbing through header links
• Test tabbing through footer links

Firefox

• Test a link in each dropdown of the desktop header (Especially login/free trial buttons)
• Test a link each section of the desktop footer (Especially Edit in IDE/Page source links)
• Test a link in each section of the mobile header
• Test a link in each section of the mobile footer
• Test search on desktop
• Test search on mobile
• Test tabbing through header links
• Test tabbing through footer links