Enable rendering of bare math blocks in notebooks

Fixes #133390

Adds support for math blocks that just start with `\begin` instead of being wrapped in dollar signs

extensions/markdown-math/notebook/katex.ts

@@ -44,6 +44,9 @@ export async function activate(ctx: RendererContext<void>) {
 
 	const katex = require('@iktakahiro/markdown-it-katex');
 	markdownItRenderer.extendMarkdownIt((md: markdownIt.MarkdownIt) => {
-		return md.use(katex, { globalGroup: true });
+		return md.use(katex, {
+			globalGroup: true,
+			enableBareBlocks: true,
+		});
 	});
 }

extensions/markdown-math/yarn.lock

@@ -4,7 +4,7 @@
 
 "@iktakahiro/markdown-it-katex@https://github.com/mjbvz/markdown-it-katex.git":
   version "4.0.1"
-  resolved "https://github.com/mjbvz/markdown-it-katex.git#2bf0b89c6c22ef0b585f55ccab66d1f7c5356bea"
+  resolved "https://github.com/mjbvz/markdown-it-katex.git#820d9025ad84937eb3f9f7efbc1be7595e20b19f"
   dependencies:
     katex "^0.13.0"