Replace webextapiref links for contextMenus

[caugner]

Description

Replaces contextMenus with menu in WebExtAPIRef invocations.

Motivation

The contextMenus pages redirect to menus, and this is the cause for Rari build issues ("flaws").

Additional details

Related issues and pull requests

Part of mdn/fred#1462.

[github-actions]

Preview URLs (3 pages)

• /en-US/docs/Mozilla/Add-ons/WebExtensions/API/menus/ACTION_MENU_TOP_LEVEL_LIMIT
• /en-US/docs/Mozilla/Add-ons/WebExtensions/API/pageAction/onClicked
• /en-US/docs/Mozilla/Firefox/Releases/136

Flaws (4)

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

Found an unexpected or unresolvable flaw? Please report it here.

URL: /en-US/docs/Mozilla/Firefox/Releases/136
Title: Firefox 136 release notes for developers
Flaw count: 4

• macros:
  • Macro cssxref produces link /en-US/docs/Web/CSS/linear-gradient which is a redirect
  • Macro cssxref produces link /en-US/docs/Web/CSS/conic-gradient which is a redirect
  • Macro cssxref produces link /en-US/docs/Web/CSS/radial-gradient which is a redirect
  • Macro svgelement produces link /en-US/docs/Web/SVG/Reference/Element/discard which is a redirect

External URLs (1)

URL: /en-US/docs/Mozilla/Firefox/Releases/136
Title: Firefox 136 release notes for developers

• https://bugzil.la/1688743 (1 time) (Note! This may be a new URL 👀)