refactor: clean up dependencies and enhance component functionality

- Removed unused dependencies related to @dnd-kit from pnpm-lock.yaml.
- Updated Vite configuration to set the base path.
- Added input styles to the main CSS file.
- Enhanced BackgroundImage component to include an overflowHidden prop for better layout control.
- Deleted the DraggableItem component as it was no longer needed.
- Updated routing to include new Publicity and Content pages, and modified navigation in Menu and NotFound components.

src/pages/Menu.tsx

@@ -47,6 +47,7 @@ export default function Home() {
 
   const handleSelectTeacher = (teacherId: number) => {
     setSelectedTeacherId(teacherId);
+    navigate("/Publicity");
   };
 
   const handleStartExperiment = () => {
@@ -66,7 +67,7 @@ export default function Home() {
         alt="返回"
         button
         className="absolute top-0 right-0"
-        onClick={handleStartExperiment}
+        onClick={() => navigate("/")}
       />
 
       <Image