Add a way to disable included Markdown plugins

[lynzrand]

Is your feature request related to a problem? Please describe.

VitePress by default contains a couple of plugins in addition to vanilla Markdown rendering. However, some plugins might introduce unexpected features when compared to rendering Markdown without the transformation. This adds complexity to theme writers who don't want to support such features.

For example, the preWrapperPlugin wraps the Markdown code block with an additional level of buttons and titles. It's probably fine for default theme, but for theme writers who do not want to support such features (for theme styling or whatever other reason), this gets into their ways, and they now have to additionally hide all the elements this plugin introduces.

vitepress/src/node/markdown/markdown.ts

Line 238 in 060971d

.use(preWrapperPlugin, { codeCopyButtonTitle, hasSingleTheme })

vitepress/src/node/markdown/plugins/preWrapper.ts

Lines 22 to 28 in 060971d

	return (
	`<div class="language-${lang}${getAdaptiveThemeMarker(options)}${active}">` +
	`<button title="${options.codeCopyButtonTitle}" class="copy"></button>` +
	`<span class="lang">${lang}</span>` +
	fence(...args) +
	'</div>'
	)

Describe the solution you'd like

Add an option, or some other ways, to disable built-in plugins, especially those that would introduce elements that create additional styling requirements compared to vanilla Markdown rendering results.

Describe alternatives you've considered

Theme creators can hide them using CSS or other methods. This is more of a hack than a proper solution.

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the docs.
• Read the Contributing Guidelines.
• Check that there isn't already an issue that asks for the same feature to avoid creating a duplicate.