Feat: Add VariablePickerMenuPlugin to select variables in the prompt text box by menu #4764 (#4765)

### What problem does this PR solve?

Feat: Add VariablePickerMenuPlugin to select variables in the prompt
text box by menu #4764

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/.umirc.ts

@@ -1,4 +1,5 @@
 import path from 'path';
+import TerserPlugin from 'terser-webpack-plugin';
 import { defineConfig } from 'umi';
 import { appName } from './src/conf.json';
 import routes from './src/routes';
@@ -23,7 +24,7 @@ export default defineConfig({
     '@react-dev-inspector/umi4-plugin',
     '@umijs/plugins/dist/tailwindcss',
   ],
-  jsMinifier: 'terser',
+  jsMinifier: 'none', // Fixed the issue that the page displayed an error after packaging lexical with terser
   lessLoader: {
     modifyVars: {
       hack: `true; @import "~@/less/index.less";`,
@@ -48,6 +49,8 @@ export default defineConfig({
   chainWebpack(memo, args) {
     memo.module.rule('markdown').test(/\.md$/).type('asset/source');
 
+    memo.optimization.minimizer('terser').use(TerserPlugin); // Fixed the issue that the page displayed an error after packaging lexical with terser
+
     return memo;
   },
   tailwindcss: {},