feat: Add draggable window component and associated functionality

- Implemented DraggableWindose component with drag-and-drop capabilities.
- Added shake detection to close the window after multiple shakes.
- Integrated responsive design for mobile devices.
- Created TXT component to display a clickable text icon with hover effects.
- Included image assets for the draggable window and text icon.

src/components/txt.tsx

@@ -0,0 +1,22 @@
+import Image from "next/image";
+
+interface TXTProps {
+    onHover?: (position: { x: number; y: number } | null) => void;
+}
+
+export default function TXT({ onHover }: TXTProps) {
+    return (
+        <div 
+            className="flex flex-col items-center justify-center gap-4 absolute top-4 left-4 p-2 cursor-pointer font-galmuri drag-none select-none"
+            onMouseEnter={() => onHover?.({ x: 16, y: 16 })}
+            onMouseLeave={() => onHover?.(null)}
+            onClick={() => {
+                alert("왜 편법을 쓰지?");
+                window.location.reload();
+            }}
+        >
+            <Image src="/txt.webp" alt="txt" width={24} height={24} />
+            <span className="text-sm font-medium text-foreground/80 font-galmuri">비밀.txt</span>
+        </div>
+    );
+}