chore: bump version to 5.5.1 and update dependencies

- Upgrade version from 5.5.0 to 5.5.1
- Update third-party dependencies: algolia, disqusjs, docsearch, fancybox, fontawesome, mermaid
- Replace Twitter with X in share configurations
- Enable CDN version numbers by default
- Fix shuoshuo page JSON security with safeJSON helper
- Improve image lazy loading regex to handle minified HTML
- Fix search result HTML structure and styling
- Add margin-top to search result numbering for better alignment

source/css/_search/index.styl

@@ -91,6 +91,7 @@
         justify-content: center
         align-items: center
         margin-right: 6px
+        margin-top: 3px
         min-width: 24px
         color: $search-color
         content: attr(value) '.'

source/js/search/local-search.js

@@ -156,10 +156,10 @@ class LocalSearch {
       }
 
       slicesOfContent.forEach(slice => {
-        resultItem += `<p class="search-result">${this.highlightKeyword(content, slice)}...</p></a>`
+        resultItem += `<p class="search-result">${this.highlightKeyword(content, slice)}...</p>`
       })
 
-      resultItem += '</li>'
+      resultItem += '</a></li>'
       resultItems.push({
         item: resultItem,
         id: resultItems.length,