♻️ refactor: Move similar javascript inline code out of line

- Move variables oid, oid_likes out of line
- Move background-blur out of line
- Move fetch-repo code out of line

assets/js/fetch-repo.js

@@ -0,0 +1,30 @@
+function fetchRepo() {
+  const script = document.currentScript;
+  const repoURL = script && script.getAttribute("data-url") ? script.getAttribute("data-url")
+    : (console.error("data-url is null"), null);
+  const repoId = script && script.getAttribute("data-id") ? script.getAttribute("data-id")
+    : (console.error("data-id is null"), null);
+  const requestObjects =
+    repoId.startsWith("github") ? ["full_name", "description", "stargazers_count", "forks"]
+    : repoId.startsWith("gitlab") ? ["name_with_namespace", "description", "star_count", "forks_count"]
+    : ["full_name", "description", "stars_count", "forks_count"];
+  fetch(repoURL, {
+    headers: new Headers({
+      "User-agent": "Mozilla/4.0 Custom User Agent"
+    })
+  })
+    .then((response) => response.json())
+    .then((data) => {
+      requestObjects.forEach((requestObject) => {
+        let element = document.getElementById(`${repoId}-${requestObject}`);
+        if (requestObject === "stargazers_count" && repoId.startsWith("github")) {
+            element = document.getElementById(`${repoId}-stargazers`);
+        }
+        element ? (element.innerHTML = data[requestObject])
+          : (console.error(`element.innerHTML for '${repoId}-${requestObject}' is null`), null);
+      });
+    })
+    .catch((error) => console.error(error));
+}
+
+fetchRepo();