fix: add types exports to package.json

Author: hannoeru

packages/config/package.json

@@ -17,6 +17,7 @@
   ],
   "exports": {
     ".": {
+      "types": "./dist/index.d.ts",
       "require": "./dist/index.js",
       "import": "./dist/index.mjs"
     },

packages/plugin-utils/package.json

@@ -17,6 +17,7 @@
   ],
   "exports": {
     ".": {
+      "types": "./dist/index.d.ts",
       "require": "./dist/index.js",
       "import": "./dist/index.mjs"
     },

packages/rollup-plugin-windicss/package.json

@@ -19,6 +19,7 @@
   ],
   "exports": {
     ".": {
+      "types": "./dist/index.d.ts",
       "require": "./dist/index.js",
       "import": "./dist/index.mjs"
     },

packages/vite-plugin-windicss/package.json

@@ -25,6 +25,7 @@
     },
     "./*": "./*",
     "./client": {
+      "types": "./dist/client.d.ts",
       "require": "./dist/client.js",
       "import": "./dist/client.mjs"
     }