Add JumpToTop component for mobile devices

src/App.tsx

@@ -7,6 +7,15 @@ import Skills from "@sections/Skills";
 import Projects from "@sections/Projects";
 import SectionLine from "@components/SectionLine";
 import Footer from "@components/Footer";
+import JumpToTop from "@components/JumpToTop";
+
+function isMobileDevice() {
+	return (
+		/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(
+			navigator.userAgent
+		) || window.innerWidth < 768
+	);
+}
 
 export default function App() {
 	const aboutRef = useRef(null);
@@ -32,6 +41,11 @@ export default function App() {
 	}, []);
 
 	useEffect(() => {
+		if (isMobileDevice()) {
+			// Don't set up the Intersection Observer on small viewports
+			return;
+		}
+
 		const observer = new IntersectionObserver(
 			(entries) => {
 				entries.forEach((entry) => {
@@ -92,7 +106,12 @@ export default function App() {
 			</div>
 
 			<Footer />
-			<SectionScroll sections={["", "skills", "projects"]} />
+
+			{isMobileDevice() ? (
+				<JumpToTop />
+			) : (
+				<SectionScroll sections={["", "skills", "projects"]} />
+			)}
 		</div>
 	);
 }

src/components/JumpToTop.tsx

@@ -0,0 +1,51 @@
+import { useState, useEffect } from "react";
+import "@styles/JumpToTop.scss"; // Assuming you have a CSS file for styling
+
+export default function JumpToTop() {
+	const [isVisible, setIsVisible] = useState(false);
+
+	// Show button when page is scrolled upto given distance
+	const toggleVisibility = () => {
+		if (window.scrollY > 50) {
+			setIsVisible(true);
+		} else {
+			setIsVisible(false);
+		}
+	};
+
+	// Set the top coordinate to 0
+	// make scrolling smooth
+	const scrollToTop = () => {
+		window.scrollTo({
+			top: 0,
+		});
+	};
+
+	useEffect(() => {
+		window.addEventListener("scroll", toggleVisibility);
+		return () => window.removeEventListener("scroll", toggleVisibility);
+	}, []);
+
+	return (
+		<div className="jumpToTop">
+			{isVisible && (
+				<div onClick={scrollToTop}>
+					<svg
+						xmlns="http://www.w3.org/2000/svg"
+						viewBox="0 0 24 24"
+						fill="none"
+						stroke="currentColor"
+						strokeWidth="2"
+						strokeLinecap="round"
+						strokeLinejoin="round"
+						className="feather feather-arrow-up-circle"
+					>
+						<circle cx="12" cy="12" r="10"></circle>
+						<polyline points="16 12 12 8 8 12"></polyline>
+						<line x1="12" y1="16" x2="12" y2="8"></line>
+					</svg>
+				</div>
+			)}
+		</div>
+	);
+}

src/styles/JumpToTop.scss

@@ -0,0 +1,11 @@
+.jumpToTop {
+	position: fixed;
+	bottom: 20px;
+	right: 20px;
+	cursor: pointer;
+
+	svg {
+		width: 50px;
+		height: 50px;
+	}
+}

src/styles/index.scss

@@ -27,9 +27,7 @@
 }
 
 html {
-	@media (min-width: 768px) {
-		scroll-behavior: smooth;
-	}
+	scroll-behavior: smooth;
 }
 
 h1 {