fix: 修復 mathjax 行內公式 導致行距過密的 bug

fix: 修復更新mathjax 新版本後，mathjax 會溢出屏幕而不是顯示滾動條的 bug
improvement: 避免沒更新主題文件而導致 anchor 配置報錯的問題
improvement: 更新 plugins.yml

layout/includes/head/config.pug

@@ -120,5 +120,5 @@ script.
     },
     isPhotoFigcaption: !{theme.photofigcaption},
     islazyload: !{theme.lazyload.enable},
-    isAnchor: !{theme.anchor.auto_update}
+    isAnchor: !{theme.anchor.auto_update || false}
   }

layout/includes/third-party/math/mathjax.pug

@@ -7,7 +7,7 @@ script.
         tags: 'ams'
       },
       chtml: {
-        scale: 1.2
+        scale: 1.1
       },
       options: {
         renderActions: {
@@ -23,12 +23,11 @@ script.
             }
           }, ''],
           insertScript: [200, () => {
-            document.querySelectorAll('mjx-container:not\([display]\)').forEach(node => {
-              const target = node.parentNode
-              if (target.nodeName.toLowerCase() === 'li') {
-                target.parentNode.classList.add('has-jax')
+            document.querySelectorAll('mjx-container').forEach(node => {
+              if (node.hasAttribute('display')) {
+                btf.wrap(node, 'div', { class: 'mathjax-overflow' })
               } else {
-                target.classList.add('has-jax')
+                btf.wrap(node, 'span', { class: 'mathjax-overflow' })
               }
             });
           }, '', false]