Updated the groups section for the teachers and admins

src/hooks/useGroups.tsx

@@ -10,8 +10,13 @@ export default function useGroups(admin?: string) {
 	const getData = () => {
 		setIsLoading(true);
 		axios
-			.get<Group[]>(!admin ? "/api/groups" : `/api/groups?admin=${admin}`)
-			.then((response) => setGroups(response.data))
+			.get<Group[]>("/api/groups")
+			.then((response) => {
+				const filter = (g: Group) => g.admin === admin || g.participants.includes(admin || "");
+
+				const filteredGroups = admin ? response.data.filter(filter) : response.data;
+				return setGroups(admin ? filteredGroups.map((g) => ({...g, disableEditing: g.disableEditing || g.admin !== admin})) : filteredGroups);
+			})
 			.finally(() => setIsLoading(false));
 	};