feat: save group selected

src/components/Header.tsx

@@ -60,7 +60,13 @@ function Header() {
   return (
     <div className="mx-auto w-full max-w-5xl">
       <section className="flex items-center justify-between header-top">
-        <section onClick={() => navigate("/")} className="cursor-pointer flex items-center sm:text-base text-sm font-medium">
+        <section
+          onClick={() => {
+            sessionStorage.removeItem("selectedGroup")
+            navigate("/")
+          }}
+          className="cursor-pointer flex items-center sm:text-base text-sm font-medium"
+        >
           <div className="mr-1 flex flex-row items-center justify-start header-logo">
             <img
               width={40}