fix(publish): set each package's publishConfig to public

Scoped packages are private by default on npm. lerna/lerna#178 (comment)

packages/app/package.json

@@ -7,5 +7,8 @@
     "dist",
     "template"
   ],
-  "main": "dist/app.js"
+  "main": "dist/app.js",
+  "publishConfig": {
+    "access": "public"
+  }
 }

packages/builder/package.json

@@ -54,5 +54,8 @@
     "webpack-hot-middleware": "^2.24.3",
     "webpack-node-externals": "^1.7.2",
     "webpackbar": "^2.6.3"
+  },
+  "publishConfig": {
+    "access": "public"
   }
 }

packages/cli/package.json

@@ -15,5 +15,8 @@
     "consola": "^1.4.4",
     "esm": "^3.0.84",
     "minimist": "^1.2.0"
+  },
+  "publishConfig": {
+    "access": "public"
   }
 }

packages/common/package.json

@@ -11,5 +11,8 @@
     "consola": "^1.4.4",
     "lodash": "^4.17.11",
     "std-env": "^2.0.2"
+  },
+  "publishConfig": {
+    "access": "public"
   }
 }

packages/core/package.json

@@ -37,5 +37,8 @@
     "vue-server-renderer": "^2.5.17",
     "vue-template-compiler": "^2.5.17",
     "vuex": "^3.0.1"
+  },
+  "publishConfig": {
+    "access": "public"
   }
 }