feat: 適配 hexo 5.0.0 的 prismjs, 代碼主題和各項功能

refactor: 移除 代碼default主題
fix: 修復夜間模式下代碼塊有背景的bugs（沒開啟渲染的情況下）
feat: 增加 code font-size配置 close #322
refactor: 更改配置中 code-font 為 code-font-family
feat: Pjax下，刷新頁面時，會滾動到上次瀏覽的位置
fix: 修復mathjax溢出屏幕的Bugs close #321

source/css/_highlight/highlight/index.styl

@@ -0,0 +1,54 @@
+if $highlight_theme != false
+  @require 'diff'
+
+#article-container
+  figure.highlight
+    .line
+      if wordWrap
+        &:before
+          display: inline-block
+          padding: 0 .3rem 0 0
+          min-width: 1.6rem
+          color: $highlight-gutter.color
+          content: counter(line)
+          counter-increment: line
+          text-align: left
+
+      &.marked
+        background-color: $highlight-selection
+
+    table
+      display: block
+      overflow: auto
+      border: none
+
+    td
+      padding: 0
+      border: none
+
+    figcaption
+      clearfix()
+      padding: .3rem 0 .1rem .7rem
+      font-size: 1em
+      line-height: 1em
+
+      a
+        float: right
+        padding-right: 10px
+        color: $highlight-foreground
+
+        &:hover
+          border-bottom-color: $highlight-foreground
+
+    .gutter pre
+      padding-right: .5rem
+      padding-left: .5rem
+      background-color: $highlight-gutter.bg-color
+      color: $highlight-gutter.color
+      text-align: right
+
+    .code pre
+      padding-right: .5rem
+      padding-left: .5rem
+      width: 100%
+