refactor(contentPage): remove outdated comments regarding dead link detection

This commit cleans up the code in the content page emitter by removing unnecessary comments that referenced an external issue. The functionality for dead link detection remains intact, ensuring clarity and maintainability of the code.

quartz/plugins/emitters/contentPage.tsx

@@ -28,25 +28,17 @@ async function processContent(
 ) {
   const slug = fileData.slug!
   const cfg = ctx.cfg.configuration
-  
-  /** Until the end of visit(), this code snippet is from
-   * https://github.com/jackyzha0/quartz/issues/454#issuecomment-2408792538
-   * by auctumnus
-   * 
-   * It removes all the links that would lead to missing pages, ie.
-   * 
-   * [[Missing link]] when Missing link.md does not exist.
-   */
+
   const allSlugs = allFiles.map((f) => (f.slug ? resolveRelative(slug, f.slug) : ""))
- 
+
   visit(tree as Root, "element", (elem) => {
     if (elem.tagName === "a" && elem.properties.href) {
       const href = elem.properties.href.toString()
- 
+
       if (href.startsWith("#")) {
         return
       }
- 
+
       if (!allSlugs.includes(href as RelativeURL)) {
         if (elem.properties.className === undefined) {
           elem.properties.className = "dead-link"

quartz/styles/custom.scss

@@ -12,4 +12,4 @@
   border-radius: 5px;
   line-height: 1.4rem;
   cursor: default;
-}
+}