chore: improve compile time in dev mode

generators/app/templates/package.json.vm

@@ -4,7 +4,7 @@
   "description": "Scaffold for umi based project",
   "scripts": {
     "start": "umi dev",
-    "build": "umi build"
+    "build": "UMI_ENV=prod umi build"
   },
   "license": "MIT",
   "husky": {
@@ -25,20 +25,20 @@
     "@commitlint/cli": "^9.1.2",
     "@commitlint/config-conventional": "^9.1.2",
     "@types/classnames": "^2.2.10",
-    "@types/jest": "^26.0.10",
+    "@types/jest": "^26.0.12",
     "@types/js-cookie": "^2.2.6",
     "@umijs/plugin-access": "^2.3.1",
     "@umijs/plugin-antd": "^0.8.0",
     "@umijs/plugin-initial-state": "^2.2.1",
     "@umijs/plugin-locale": "^0.10.1",
     "@umijs/plugin-model": "^2.5.3",
     "@umijs/plugin-request": "^2.5.0",
-    "@umijs/test": "^3.2.17",
+    "@umijs/test": "^3.2.19",
     "husky": "^4.2.5",
     "lint-staged": "^10.2.13",
     "react-coding-style": "^1.1.1",
-    "umi": "^3.2.17",
-    "umi-plugin-antd-theme": "^2.1.2"
+    "umi": "^3.2.19",
+    "umi-plugin-dynamic-antd-theme": "^3.0.1"
   },
   "dependencies": {
     "ahooks": "^2.5.0",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "generator-umi",
-  "version": "4.4.2",
+  "version": "4.4.3",
   "description": "umi project generator",
   "scripts": {
     "docs:dev": "vuepress dev docs",