Fixing markdown parsing on settings

[Bestora]

• Resolves: #48661

Summary

The custom markdown renderer heading for "marked" used fn(text,level).

In the docs it's this: https://marked.js.org/using_pro heading({ tokens, depth }: Tokens.Heading): string;

interface Heading {
	type: "heading";
	raw: string;
	depth: number;
	text: string;
	tokens: Token[];
}

Before:

After:

TODO

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• [ ] Tests (unit, integration, api and/or acceptance) are included
• [x] Screenshots before/after for front-end changes
• [ ] Documentation (manuals or wiki) has been updated or is not required
• [ ] Backports requested where applicable (ex: critical bugfixes)