change design and data list in doctor-item & handle component appointment in doctor-item & handle functionality date-picker & fix bug appointment page & add req get appointment list

app/component/LoadingComponent.js

@@ -0,0 +1,18 @@
+import { CircularProgress } from "@mui/material";
+import React from "react";
+
+function LoadingComponent({ children, loading }) {
+  return (
+    <div className="relative">
+      {loading ? (
+        <div className="absolute min-h-[80px] mt-[160px] w-full h-full flex items-center justify-center">
+          <CircularProgress />
+        </div>
+      ) : (
+        children
+      )}
+    </div>
+  );
+}
+
+export default LoadingComponent;