[page type] Add page-type for CSS landing pages

[wbamberg]

This PR adds page-type values for CSS landing pages, following the analysis in #15540.

https://developer.mozilla.org/en-US/docs/web/css/tutorials especially is a sad page, but I will at least fix some of the links in a follow up. Longer term we should really redo the IA for CSS.

[github-actions]

Preview URLs (9 pages)

• /en-US/docs/Web/CSS/CSS_Selectors
• /en-US/docs/Web/CSS/CSS_animated_properties
• /en-US/docs/Web/CSS/Layout_cookbook
• /en-US/docs/Web/CSS/Microsoft_Extensions
• /en-US/docs/Web/CSS/Mozilla_Extensions
• /en-US/docs/Web/CSS/Pseudo-classes
• /en-US/docs/Web/CSS/Pseudo-elements
• /en-US/docs/Web/CSS/Reference
• /en-US/docs/Web/CSS/Tutorials

Flaws (184)

Note! 2 documents with no flaws that don't need to be listed. 🎉

URL: /en-US/docs/Web/CSS/Microsoft_Extensions
Title: Microsoft CSS extensions
Flaw count: 63

• macros:
  • /en-US/docs/Web/CSS/-ms-accelerator does not exist
  • /en-US/docs/Web/CSS/-ms-block-progression does not exist
  • /en-US/docs/Web/CSS/-ms-content-zoom-chaining does not exist
  • /en-US/docs/Web/CSS/-ms-content-zooming does not exist
  • /en-US/docs/Web/CSS/-ms-content-zoom-limit does not exist
  • and 57 more flaws omitted
• broken_links:
  • Can't resolve /en-US/docs/Web/JavaScript/Microsoft_JavaScript_extensions

---

URL: /en-US/docs/Web/CSS/Reference
Title: CSS reference
Flaw count: 2

• macros:
  • wrong xref macro used (consider changing which macro you use)
• broken_links:
  • Can't resolve /en-US/docs/Web/CSS/CSS_Properties_Reference

---

URL: /en-US/docs/Web/CSS/Pseudo-classes
Title: Pseudo-classes
Flaw count: 7

• macros:
  • /en-US/docs/Web/CSS/:dir() redirects to /en-US/docs/Web/CSS/:dir
  • /en-US/docs/Web/CSS/:lang() redirects to /en-US/docs/Web/CSS/:lang
  • wrong xref macro used (consider changing which macro you use)
  • wrong xref macro used (consider changing which macro you use)
  • wrong xref macro used (consider changing which macro you use)
  • and 2 more flaws omitted

---

URL: /en-US/docs/Web/CSS/Mozilla_Extensions
Title: Mozilla CSS extensions
Flaw count: 95

• macros:
  • /en-US/docs/Web/CSS/-moz-binding does not exist
  • /en-US/docs/Web/CSS/-moz-border-bottom-colors does not exist
  • /en-US/docs/Web/CSS/-moz-border-left-colors redirects to /en-US/docs/Web/CSS/Mozilla_Extensions#b
  • /en-US/docs/Web/CSS/-moz-border-right-colors does not exist
  • /en-US/docs/Web/CSS/-moz-border-top-colors does not exist
  • and 88 more flaws omitted
• broken_links:
  • Can't resolve /en-US/docs/Mozilla/Tech/XUL
  • Can't resolve /en-US/docs/Mozilla/Gecko/Chrome/CSS

---

URL: /en-US/docs/Web/CSS/CSS_animated_properties
Title: Animatable CSS properties
Flaw count: 8

• macros:
  • /en-US/docs/Web/CSS/-ms-grid-columns redirects to /en-US/docs/Web/CSS/grid-template-columns
  • /en-US/docs/Web/CSS/-ms-grid-rows redirects to /en-US/docs/Web/CSS/grid-template-rows
  • /en-US/docs/Web/CSS/grid-column-gap redirects to /en-US/docs/Web/CSS/column-gap
  • /en-US/docs/Web/CSS/grid-gap redirects to /en-US/docs/Web/CSS/gap
  • /en-US/docs/Web/CSS/grid-row-gap redirects to /en-US/docs/Web/CSS/row-gap
  • and 3 more flaws omitted

---

URL: /en-US/docs/Web/CSS/Tutorials
Title: CSS Tutorials
Flaw count: 8

• broken_links:
  • Can't resolve /en-US/docs/Web/CSS/Getting_Started
  • Can't resolve /en-US/docs/Web/CSS/Understanding_z-index
  • Can't resolve /en-US/docs/Web/CSS/Tutorials/Using_CSS_animations
  • Can't resolve /en-US/docs/Web/CSS/Tutorials/Using_CSS_transitions
  • Can't resolve /en-US/docs/Web/CSS/Tutorials/Using_CSS_transforms
  • and 3 more flaws omitted

---

URL: /en-US/docs/Web/CSS/CSS_Selectors
Title: CSS selectors
Flaw count: 1

• macros:
  • /en-US/docs/Web/HTML/Element/h2 redirects to /en-US/docs/Web/HTML/Element/Heading_Elements