Defect: Node 20 Update Cleanup

[heathermoses]

Description

After updating to Node 20, there are a few non-breaking bugs to fix.
*Note: many of these bugs may be related. For example, several of these bugs are related to the margin being too wide (this applies to all labs, not just the ones shown in the screenshots below).

Navigation Bar

Live Site - navigation bar is one line

With Node 20 Update - navigation bar is separated on two lines, it should only be one line

Labs on Landing Page

Live Site

With Node 20 Update - lab titles are underlined, they shouldn't be underlined

Lab Reading Page and Lab Navigation Bar

Live Site

With Node 20 Update - wider margin than it should be, navigation bar is on two lines instead of one

Lab Reinforcement

Live Site

With Node 20 Update - wider margin than it should be

Lab Quiz

Live Site

With Node 20 Update - wider margin than it should be

Lab Completion

Live Site

With Node 20 Update - wider margin than it should be

Lab 6 Exercise - Hiring Candidate

Live Site

With Node 20 Update - Confirm button should appear beneath the candidates