Replace old docs with new docs repo (#24201)

docs/normalize-internal-links.js

@@ -0,0 +1,44 @@
+(function () {
+  function normalizeInternalLinks() {
+    const selectors = [
+      'a[href*="bun.com/docs/installation"]',
+      'a[href="https://bun.com/reference"]',
+      'a[href="https://bun.com/blog"]',
+    ];
+
+    selectors.forEach(selector => {
+      const elements = document.querySelectorAll(selector);
+      elements.forEach(element => {
+        if (element.hasAttribute("target")) {
+          element.removeAttribute("target");
+          // Also remove rel="noreferrer" if present, typically paired with target="_blank"
+          if (element.getAttribute("rel") === "noreferrer") {
+            element.removeAttribute("rel");
+          }
+          console.log(`Removed target="_blank" from: ${element.textContent || element.innerHTML.substring(0, 50)}`);
+        }
+      });
+    });
+  }
+
+  if (document.readyState === "loading") {
+    document.addEventListener("DOMContentLoaded", normalizeInternalLinks);
+  } else {
+    normalizeInternalLinks();
+  }
+
+  const observer = new MutationObserver(function (mutations) {
+    mutations.forEach(function (mutation) {
+      if (mutation.type === "childList" || mutation.type === "attributes") {
+        normalizeInternalLinks();
+      }
+    });
+  });
+
+  observer.observe(document.body, {
+    childList: true,
+    subtree: true,
+    attributes: true,
+    attributeFilter: ["target", "href"],
+  });
+})();