UI: Change light mode icon to a lightbulb

src/pages/HomePage.tsx

@@ -1,7 +1,7 @@
 import { useCallback, useEffect, useMemo, useRef, useState } from "react";
 import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
 import { faYoutube } from "@fortawesome/free-brands-svg-icons";
-import { faSun, faMoon, faHistory, faCog } from "@fortawesome/free-solid-svg-icons";
+import { faLightbulb, faMoon, faHistory, faCog } from "@fortawesome/free-solid-svg-icons";
 import { Link } from "react-router-dom";
 import { InputPanel } from "../components/InputPanel";
 import type { InputValues } from "../components/InputPanel";
@@ -450,7 +450,7 @@ export function HomePage() {
                 <div className={`w-full h-full rounded-full ${theme === "dark" ? "gradient-bg opacity-10" : "opacity-0"} transition-opacity duration-300`} />
               </div>
               <div className="w-5 h-5 flex items-center justify-center z-10">
-                <FontAwesomeIcon icon={faSun} className={`w-2.5 h-2.5 transition-colors ${theme === "dark" ? "text-fg-muted/60" : "text-yellow-500"}`} />
+                <FontAwesomeIcon icon={faLightbulb} className={`w-2.5 h-2.5 transition-colors ${theme === "dark" ? "text-fg-muted/60" : "text-yellow-500"}`} />
               </div>
               <div className="w-5 h-5 flex items-center justify-center z-10">
                 <FontAwesomeIcon icon={faMoon} className={`w-2.5 h-2.5 transition-colors ${theme === "dark" ? "text-accent-primary" : "text-fg-muted/60"}`} />