Remove CanvasImageSource typedef

[teoli2003]

This PR gets rid of all mentions of CanvasImageSource.

There are two rationales behind this:

1. Typedef names are not visible in the Web console, or to Web developers, they are artifacts of the spec, to simplify it. From the Web dev perspective, they add complexity
2. As part of the page-type project ([page types] Define page types for Web/API #16255), we don't want to have a special page type for these typedef-like pages. It is necessary to deal with it now.

[github-actions]

Preview URLs

• https://pr17181.content.dev.mdn.mozit.cloud/en-US/docs/Mozilla/Firefox/Releases/56
• https://pr17181.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/BarcodeDetector/BarcodeDetector
• https://pr17181.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Barcode_Detection_API
• https://pr17181.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/CanvasRenderingContext2D/createPattern
• https://pr17181.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/CanvasRenderingContext2D/drawImage
• https://pr17181.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/CanvasRenderingContext2D
• https://pr17181.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Canvas_API/Tutorial/Applying_styles_and_colors
• https://pr17181.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Canvas_API/Tutorial/Using_images
• https://pr17181.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Canvas_API
• https://pr17181.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/VideoFrame/VideoFrame
• https://pr17181.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/VideoFrame

Flaws

Note! 8 documents with no flaws that don't need to be listed. 🎉

URL: /en-US/docs/Web/API/VideoFrame
Title: VideoFrame
on GitHub
Flaw count: 1

• macros:
  • /en-US/docs/Web/API/Web_Codecs_API does not exist

---

URL: /en-US/docs/Web/API/VideoFrame/VideoFrame
Title: VideoFrame.VideoFrame()
on GitHub
Flaw count: 2

• macros:
  • /en-US/docs/Web/API/ArrayBuffer does not exist
  • /en-US/docs/Web/API/ArrayBuffer does not exist

---

URL: /en-US/docs/Mozilla/Firefox/Releases/56
Title: Firefox 56 for developers
on GitHub
Flaw count: 5

• macros:
  • /en-US/docs/Web/API/Document/onvisibilitychange redirects to /en-US/docs/Web/API/Document/visibilitychange_event
  • /en-US/docs/Web/API/HTMLInputElement/formAction does not exist
  • /en-US/docs/Web/API/HTMLButtonElement/formAction does not exist
  • /en-US/docs/Web/HTML/Element/isindex does not exist
• broken_links:
  • Can't resolve /en-US/docs/Mozilla/Firefox/Headless_mode

External URLs

URL: /en-US/docs/Web/API/Barcode_Detection_API
Title: Barcode Detection API
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/Canvas_API
Title: Canvas API
on GitHub

• 🚨 http://fabricjs.com (1 time)
• 🚨 http://paperjs.org/ (1 time)
• https://bucephalus.org/text/CanvasHandbook/CanvasHandbook.html (1 time)
• https://github.com/jeremyckahn/rekapi (1 time)
• https://joshondesign.com/p/books/canvasdeepdive/title.html (1 time)
• https://konvajs.org/ (1 time)
• https://p5js.org/ (1 time)
• https://phaser.io/ (1 time)
• https://philogb.github.io/jit/ (1 time)
• https://ptsjs.org (1 time)
• https://scrawl.rikweb.org.uk/ (1 time)
• https://www.createjs.com/easeljs (1 time)
• https://www.patrick-wied.at/static/heatmapjs/ (1 time)
• https://zimjs.com (1 time)

---

URL: /en-US/docs/Web/API/Canvas_API/Tutorial/Applying_styles_and_colors
Title: Applying styles and colors
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/Canvas_API/Tutorial/Using_images
Title: Using images
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/BarcodeDetector/BarcodeDetector
Title: BarcodeDetector()
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/CanvasRenderingContext2D
Title: CanvasRenderingContext2D
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/CanvasRenderingContext2D/drawImage
Title: CanvasRenderingContext2D.drawImage()
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/CanvasRenderingContext2D/createPattern
Title: CanvasRenderingContext2D.createPattern()
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/VideoFrame
Title: VideoFrame
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/VideoFrame/VideoFrame
Title: VideoFrame.VideoFrame()
on GitHub

No new external URLs

---

URL: /en-US/docs/Mozilla/Firefox/Releases/56
Title: Firefox 56 for developers
on GitHub

No new external URLs

(this comment was updated 2022-06-11 06:06:57.174815)