feat: update some Go template files

go.mod.tmpl

-module test
+module wails-vue
 
 go 1.16
 

template.json

 {
   "name": "wails-template-vue",
-  "shortname": "wails-template-vue",
+  "shortname": "vue",
   "author": "Misitebao <i@misitebao.com>",
   "description": "A template using vue and vue-router",
   "helpurl": "https://github.com/misitebao/wails-template-vue"

wails.tmpl.json

@@ -2,8 +2,6 @@
   "name": "{{.ProjectName}}",
   "outputfilename": "{{.BinaryName}}",
   "assetdir": "frontend/dist",
-  "frontend:build": "npm run build",
-  "frontend:install": "npm install",
   "author": {
     "name": "{{.AuthorName}}",
     "email": "{{.AuthorEmail}}"