fix: vue-class-component and vue-property-decorators should be dependencies

Author: yyx990803

packages/@vue/cli-plugin-typescript/__tests__/tsGenerator.spec.js

@@ -30,8 +30,8 @@ test('classComponent', async () => {
     }
   ])
 
-  expect(pkg.devDependencies).toHaveProperty('vue-class-component')
-  expect(pkg.devDependencies).toHaveProperty('vue-property-decorator')
+  expect(pkg.dependencies).toHaveProperty('vue-class-component')
+  expect(pkg.dependencies).toHaveProperty('vue-property-decorator')
 
   expect(files['tsconfig.json']).toMatch(`"experimentalDecorators": true`)
   expect(files['tsconfig.json']).toMatch(`"emitDecoratorMetadata": true`)

packages/@vue/cli-plugin-typescript/generator/index.js

@@ -10,7 +10,7 @@ module.exports = (api, {
 
   if (classComponent) {
     api.extendPackage({
-      devDependencies: {
+      dependencies: {
         'vue-class-component': '^6.0.0',
         'vue-property-decorator': '^6.0.0'
       }