Make sure katex styles are shipped under root of

Also copies of just the katex css we need instead of bundling the entire module

.gitignore

@@ -5,6 +5,7 @@ Thumbs.db
 node_modules/
 .build/
 extensions/**/dist/
+extensions/notebook-markdown-extensions/notebook-out/**
 /out*/
 /extensions/**/out/
 src/vs/server

extensions/notebook-markdown-extensions/notebook/katex.ts

@@ -8,7 +8,7 @@ declare const extendMarkdownIt: undefined | (
 	(f: (md: markdownIt.MarkdownIt) => void) => void
 );
 
-const styleHref = (document.currentScript as any).src.replace('notebook-out/katex.js', 'node_modules/katex/dist/katex.min.css');
+const styleHref = (document.currentScript as any).src.replace(/katex.js$/, 'katex.min.css');
 
 const link = document.createElement('link');
 link.rel = 'stylesheet';

extensions/notebook-markdown-extensions/package.json

@@ -31,15 +31,14 @@
   "scripts": {
     "compile": "npm run build-notebook",
     "watch": "npm run build-notebook",
-    "build-notebook": "npx webpack-cli --config webpack.notebook.js --mode production"
-  },
-  "dependencies": {
-    "@iktakahiro/markdown-it-katex": "^4.0.1",
-    "markdown-it-emoji": "^2.0.0"
+    "build-notebook": "npx webpack-cli --config webpack.notebook.js --mode production",
+    "postinstall": "npm run build-notebook"
   },
   "devDependencies": {
+    "@iktakahiro/markdown-it-katex": "^4.0.1",
     "@types/markdown-it": "^0.0.0",
-    "markdown-it": "^12.0.4"
+    "markdown-it": "^12.0.4",
+    "markdown-it-emoji": "^2.0.0"
   },
   "repository": {
     "type": "git",

extensions/notebook-markdown-extensions/webpack.notebook.js

@@ -3,6 +3,7 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 const path = require('path');
+const CopyPlugin = require('copy-webpack-plugin');
 
 module.exports = {
 	entry: {
@@ -23,5 +24,20 @@ module.exports = {
 	output: {
 		filename: '[name].js',
 		path: path.resolve(__dirname, 'notebook-out')
-	}
+	},
+	plugins: [
+		// @ts-ignore
+		new CopyPlugin({
+			patterns: [
+				{
+					from: './node_modules/katex/dist/katex.min.css',
+					to: 'katex.min.css'
+				},
+				{
+					from: './node_modules/katex/dist/fonts',
+					to: 'fonts/'
+				},
+			],
+		}),
+	]
 };