chore: remove plugin-container (#1462)

Author: shigma

packages/@vuepress/core/lib/node/App.js

@@ -149,12 +149,12 @@ module.exports = class App {
       .use(require('./internal-plugins/transformModule'))
       .use(require('./internal-plugins/dataBlock'))
       .use(require('./internal-plugins/frontmatterBlock'))
-      .use('@vuepress/container', {
+      .use('container', {
         type: 'slot',
         before: info => `<template slot="${info}">`,
         after: '</template>'
       })
-      .use('@vuepress/container', {
+      .use('container', {
         type: 'v-pre',
         before: '<div v-pre>',
         after: '</div>'

packages/@vuepress/core/package.json

@@ -33,7 +33,6 @@
     "@vue/babel-preset-app": "^3.1.1",
     "@vuepress/markdown": "^1.0.0-alpha.44",
     "@vuepress/markdown-loader": "^1.0.0-alpha.44",
-    "@vuepress/plugin-container": "^1.0.0-alpha.44",
     "@vuepress/plugin-last-updated": "^1.0.0-alpha.44",
     "@vuepress/plugin-register-components": "^1.0.0-alpha.44",
     "@vuepress/shared-utils": "^1.0.0-alpha.44",
@@ -60,6 +59,7 @@
     "vue-server-renderer": "^2.5.16",
     "vue-template-compiler": "^2.5.16",
     "vuepress-html-webpack-plugin": "^3.2.0",
+    "vuepress-plugin-container": "^2.0.0",
     "webpack": "^4.8.1",
     "webpack-chain": "^4.6.0",
     "webpack-dev-server": "^3.1.14",