enhance readabilities

[lazarusA]

This PR includes the capabilities describe here:
https://nolebase-integrations.ayaka.io/pages/en/integrations/vitepress-plugin-enhanced-readabilities/

As stated there, this solves:

1. Expand the width of the content on a large screen, in order to better utilize the space to facilitate the reading of some of the oversized and wide code blocks and elements.
2. Users and readers may have dyslexia, widening the layout may not be conducive to read multiple lines of text, there may be a serial reading situation, so we need an in-line reading aid .
3. When reading languages that use spaces to separate words, such as English, we need a word-level reading aid, such as bionic reading. (In progress)

[avik-pal]

Overall love the change. Even the other plugins in https://nolebase-integrations.ayaka.io/ might be worth adding later

Howeverr, there is likely a bad interaction with our CSS. The text width doesn't change with the layout.

[lazarusA]

yes, some cleaning of our CSS is needed, probably introduced in the latest release. As for other options, I was thinking

https://nolebase-integrations.ayaka.io/pages/en/integrations/vitepress-plugin-page-properties/
https://nolebase-integrations.ayaka.io/pages/en/integrations/vitepress-plugin-git-changelog/

I tried the first one already, (didn't worked on my first try). I might come back to these later. First fixing the css before merging I will do.