chore: remove Next.js dependencies and update UI components with standard React

src/components/ui/world-map.tsx

@@ -4,8 +4,6 @@ import { useRef } from "react";
 import { motion } from "motion/react";
 import DottedMap from "dotted-map";
 
-import { useTheme } from "next-themes";
-
 interface MapProps {
   dots?: Array<{
     start: { lat: number; lng: number; label?: string };
@@ -21,13 +19,11 @@ export default function WorldMap({
   const svgRef = useRef<SVGSVGElement>(null);
   const map = new DottedMap({ height: 100, grid: "diagonal" });
 
-  const { theme } = useTheme();
-
   const svgMap = map.getSVG({
     radius: 0.22,
-    color: theme === "dark" ? "#FFFFFF40" : "#00000040",
+    color: "#FFFFFF40", // Hardcoded for dark theme
     shape: "circle",
-    backgroundColor: theme === "dark" ? "black" : "white",
+    backgroundColor: "black", // Hardcoded for dark theme
   });
 
   const projectPoint = (lat: number, lng: number) => {