[fix] Complete translation of Sprite, Animation and Joints chapters

[ShiMeiWo]

• Sprite
  • Corrected typos, omissions, and distortions.
  • Fixed omissions in the English version of the md file.
• Animation
  • Annotated the word "atlas".
  • Translated the word "hero character" as "勇者くん" instead of "ヒーローキャラクター".
  • "Ha!", an expression of sarcastic lamentation, would have been translated directly into Japanese as a malicious sentence, so it was translated as the KAOMOJI "(ﾉ∀`)ｱﾁｬｰ", which has the same nuance and tempered malice.
  • Followed the translation to the latest English version of the text.
• Joints
  • Although there is "Slinky" (spring-like toy) in Japan, the name "Tomboy" (トムボーイ tomubōi) is more common, so changed the word.
  • The meaning of the numerical value given to the property angle was not clear in the original text, so added the annotation: "0 is to the right, and the angle increases clockwise as it increases".
• Fixed some words in lang/ja/ja.json.

[ShiMeiWo]

• Fixed omissions in the English version of the md file.
• Group
  • In the original, it was not clear what the "cull boundary" referred to in the description of the cull function, so added the annotation "number of pixels away from the edge of the canvas".
  • In the original, it was difficult to understand that if a callback function is given to the cull function, the sprite is not removed, so added the notes "in this case, the sprite is not removed" and "if you want to remove the sprite, you must do so explicitly in the callback function".
• World
  • According to https://github.com/quinton-ashley/p5play-web/issues/21#issuecomment-2001992936 , fixed some sentences.
• Camera
  • Since the original did not detail the need for on and off, added explanations for them; "on for World, off for Canvas"
• Fixed some words in lang/ja/ja.json.

[ShiMeiWo]

[add] Add Group, Canvas and Sound chapters

• Fixed omissions in the English version of the md file.
• Canvas
  • Added notations for hw and hh (harf width and harf height).
  • Changed some words:
  • ピクセル化モード -> ドット絵モード
    • The phrase "ピクセルアートのゲーム" in the Animation chapter was aligned with the phrase "ドット絵風のゲーム" to match the Canvas chapter.
  • vector based (font) -> アウトラインフォント (outline font)
  • In the pixelated mode section, it was difficult to understand why the coordinates of all sprites must be integer coordinates, so added explanation: "If they have no integer coordinates, they will appear blurred."
• Fixed some words in lang/ja/ja.json.

[quinton-ashley]

merging!