fix(typography): list item marker is clipped by left border

[curly210102]

Closes #103

Description

Reason: The @unocss/preset-typography sets a padding-left of only 1.5em for ol/ul markers that contain two characters, which is not enough space. Increasing the padding-left to 2em is a simple solution to this issue.

However, removing the container's overflow-hidden property by giving the code block a wrapper container may create more space for display, but it could potentially cause a conflict with the "code copy" PR.

Linked Issues

#103

Additional context