update sanitize opts

Author: zcesur

lib/algora/shared/markdown.ex

@@ -23,7 +23,7 @@ defmodule Algora.Markdown do
       unsafe_: true
     ],
     features: [
-      sanitize: true,
+      sanitize: MDEx.default_sanitize_options(),
       # TODO: sanitize and syntax_highlight_theme are currently incompatible
       # since sanitization strips out the syntax highlighting classes
       syntax_highlight_theme: "github_dark"