chore: rename 'AsyncMarkdownContentLoaded' to 'AsyncMarkdownContentMounted'

Author: ulivz

packages/@vuepress/core/lib/prepare/Page.js

@@ -68,7 +68,8 @@ module.exports = class Page {
   async process ({
     computed,
     markdown,
-    enhancers = []
+    enhancers = [],
+    preRender = {}
   }) {
     if (this._filePath) {
       this._content = await fs.readFile(this._filePath, 'utf-8')

packages/@vuepress/markdown-loader/index.js

@@ -107,7 +107,7 @@ module.exports = function (src) {
          props: ['slot-key'], 
          mounted() {
            this.$nextTick(function () {
-             this.$vuepress.$emit('AsyncMarkdownContentLoaded', this.slotKey)
+             this.$vuepress.$emit('AsyncMarkdownContentMounted', this.slotKey)
            })
          } 
       }

packages/@vuepress/plugin-active-header-links/mixin.js

@@ -43,7 +43,8 @@ function getAnchors () {
 
 export default {
   mounted () {
-    this.$vuepress.$on('AsyncMarkdownContentLoaded', (slotKey) => {
+    this.$vuepress.$on('AsyncMarkdownContentMounted', (slotKey) => {
+      console.warn('AsyncMarkdownContentMounted')
       if (slotKey === 'default') {
         window.addEventListener('scroll', this.onScroll)
       }

packages/@vuepress/theme-default/components/Page.vue

@@ -67,6 +67,9 @@ import { resolvePage, normalize, outboundRE, endingSlashRE } from '../util'
 export default {
   props: ['sidebarItems'],
 
+  data () {
+  },
+
   computed: {
     lastUpdated () {
       if (this.$page.lastUpdated) {