Add devcontainer configuration and Dependabot setup

- Created a new devcontainer.json file for an Alpine-based development environment.
- Added a Dependabot configuration file to automate dependency updates for devcontainers.

quarter-rtl/assets/js/scrollUp.js

@@ -1,19 +1,19 @@
-const scrollUp = () => {
-  const scrollUpElement = document.querySelector(".scroll-up");
-  if (scrollUpElement) {
-    scrollUpElement.addEventListener("click", () => {
-      window.scroll({ top: 0, left: 0, behavior: "smooth" });
-    });
-
-    window.addEventListener("scroll", () => {
-      const scrollCount = window.scrollY;
-
-      if (scrollCount < 300) {
-        scrollUpElement.classList.remove("active");
-      }
-      if (scrollCount > 300) {
-        scrollUpElement.classList.add("active");
-      }
-    });
-  }
-};
+const scrollUp = () => {
+  const scrollUpElement = document.querySelector(".scroll-up");
+  if (scrollUpElement) {
+    scrollUpElement.addEventListener("click", () => {
+      window.scroll({ top: 0, left: 0, behavior: "smooth" });
+    });
+
+    window.addEventListener("scroll", () => {
+      const scrollCount = window.scrollY;
+
+      if (scrollCount < 300) {
+        scrollUpElement.classList.remove("active");
+      }
+      if (scrollCount > 300) {
+        scrollUpElement.classList.add("active");
+      }
+    });
+  }
+};