feature(database-connection): Add prototype for spinner

frontend/src/mock/UserStatsMockService.ts

@@ -1,11 +1,10 @@
-import TableEntry from "../models/TableEntry";
-import UserStatsService from "../services/UserStatsService";
 import UserStatsResponse from "../models/UserStatsResponse";
 
 export default class UserStatsMockService {
     private static readonly mocks: UserStatsResponse[] = [
         {
             seasonId: "1",
+            maxSeasonId: "2",
             dates: {
                 start: new Date(2019, 12, 5),
                 end: new Date()
@@ -21,6 +20,7 @@ export default class UserStatsMockService {
         },
         {
             seasonId: "2",
+            maxSeasonId: "2",
             dates: {
                 start: new Date(new Date().getFullYear(), 0, 1),
                 end: new Date()
@@ -37,7 +37,6 @@ export default class UserStatsMockService {
     ]
 
     static async getStats(seasonId: string): Promise<UserStatsResponse> {
-
         return Promise.resolve(this.mocks[Number(seasonId) - 1])
     }