fix(markdown): add more category to CJK regex

[JLHwung]

The following characters should be treated as CJK character

3099..309A    ; Hira Kana # Mn   [2] COMBINING KATAKANA-HIRAGANA VOICED SOUND MARK..COMBINING KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK
309B..309C    ; Hira Kana # Sk   [2] KATAKANA-HIRAGANA VOICED SOUND MARK..KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK

Here is the playground link to show that current prettier adds redundant whitespaces around the characters.

The testcase text are copied from 半濁点 - Wikipedia and ヴ - Wikipedia respectively.

• I’ve added tests to confirm my change works.
• (If changing the API or CLI) I’ve documented the changes I’ve made (in the docs/ directory)
• I’ve read the contributing guidelines.

For line-breaks the jlreq has specified a long lists of unbreakable situation. IMO it is more of the render process then a code formatter can take care of. Other than redundant whitespaces that can alter the content display, incorrect line breaks are less harmful as they do not impact the rendering of markdown documents.

✨Try the playground for this PR✨

[ikatyang]

❤️ Thank you very much!