forked from drowl87/hextra_mirror

* feat: support link in code block title * refactor: simplify code block filename link implementation * docs: update syntax-highlighting.md * chore: rename `filename_uri_base` to `base_url` [skip ci] * refactor: use `base_url` int code block implementation --------- Co-authored-by: Xin <xin@imfing.com>