feat: add optional chaining plugin and update webpack config for markmap and yaml support

Signed-off-by: Yukai Huang <[email protected]>

Author: Yukaii

babel.config.js

@@ -12,6 +12,7 @@ module.exports = {
     ['@babel/plugin-transform-runtime', {
       corejs: 3
     }],
-    '@babel/plugin-transform-nullish-coalescing-operator'
+    '@babel/plugin-transform-nullish-coalescing-operator',
+    '@babel/plugin-transform-optional-chaining'
   ]
 }

package-lock.json

@@ -109,6 +109,7 @@
   "devDependencies": {
     "@babel/core": "^7.24.0",
     "@babel/plugin-transform-nullish-coalescing-operator": "^7.27.1",
+    "@babel/plugin-transform-optional-chaining": "^7.24.0",
     "@babel/plugin-transform-runtime": "^7.24.0",
     "@babel/preset-env": "^7.24.0",
     "@babel/runtime": "^7.24.0",

package.json

@@ -463,6 +463,18 @@ module.exports = {
       test: /\.mjs$/,
       type: 'javascript/auto',
       include: /node_modules/
+    }, {
+      test: /node_modules\/markmap-[^/]+\/.*\.mjs$/,
+      use: [{ loader: 'babel-loader' }]
+    }, {
+      test: /node_modules\/markmap-[^/]+\/.*\.js$/,
+      use: [{ loader: 'babel-loader' }]
+    }, {
+      test: /node_modules\/yaml\/browser\/dist\/.*\.js$/,
+      use: [{ loader: 'babel-loader' }]
+    }, {
+      test: /node_modules\/@vscode\/markdown-it-katex\/.*\.js$/,
+      use: [{ loader: 'babel-loader' }]
     }, {
       test: /\.js$/,
       use: [{ loader: 'babel-loader' }],