Upgrade to vue 3 (#1)

* updated dependencies

* updated readme

* upgrade to vue 3

* updated buttons

* duplicate id removed

* updated contact

vue.config.js

@@ -1,6 +1,6 @@
-module.exports = {
+const { defineConfig } = require('@vue/cli-service')
+
+module.exports = defineConfig({
   publicPath: '/',
-  devServer: {
-    disableHostCheck: true
-  }
-}
+  transpileDependencies: true
+})