breaking changes: algolia 升級至 v4

feat:  本地搜索增加數據庫加載中和搜索中 loading 顯示
feat: 更改文章美化後,列表的顯示效果 closed #693 closed #686
improvement: UI 微調

scripts/events/stylus.js

@@ -0,0 +1,15 @@
+/**
+ * stylus
+ */
+
+'use strict'
+
+hexo.extend.filter.register('stylus:renderer', function (style) {
+  const { highlight, prismjs } = hexo.config
+  style
+    .define('$highlight_enable', highlight && highlight.enable)
+    .define('$highlight_line_number', highlight && highlight.line_number)
+    .define('$prismjs_enable', prismjs && prismjs.enable)
+    .define('$prismjs_line_number', prismjs && prismjs.line_number)
+    // .import(this.source_dir.replace(/\\/g, '/') + '_data/css/*')
+})