Add CVEs About page

[britneywwc]

Done

• Add CVEs about page
• Copy docs: link
• Figma: link
• Refactor /cves to /cve and apply djlint formatting on all the files

QA

• Go to https://ubuntu-com-14019.demos.haus/security/cves/about
• Check that design and details adheres to Figma and copy docs
• Check that side nav works
  • It should jump to heading on select
  • When scrolling through headings, the side nav links will update automatically

Issue / Card

Fixes WD-11852

Screenshots

[If relevant, please include a screenshot.]

Help

QA steps - Commit guidelines

[webteam-app]

Demo

Jenkins

demos.haus

[juanruitina]

• [x] The page is missing the title (it's just " | Ubuntu" at the moment.
• [x] Please make all links have the standard blue, no-underline formatting: no need for p-link--soft nor <u></u> (sorry for that, I think the default Figma link formatting led to confusion)
• [x] Please only keep p-sections for the 6 chapters (so, "What are CVEs?" as a whole). Remove all p-section, rows and columns within. Default styling will work beautifully.
• [x] I noticed the sticky navigation overlaps the headings when clicking on the side navigation. Can you please add something like this?

html {
    scroll-padding-top: 5rem;
}

• [x] On mobile some columns are not fully readable (see below), I think due to text-overflow: ellipsis;. Can you do something about it?

[juanruitina]

Looks great! Thank you 💫