fix: kachel spacing & /admin

frontend/src/app/components/home/home.ts

@@ -1,7 +1,7 @@
 import { Component, OnInit } from '@angular/core';
 import { CommonModule } from '@angular/common';
 import { MaterialModule } from '../../material.module';
-import { ApiService } from '../../services/api';
+import { Api } from '../../services/api';
 import { Item } from '../../models/item';
 import { Observable } from 'rxjs';
 
@@ -16,7 +16,7 @@ export class HomeComponent implements OnInit {
   items$!: Observable<Item[]>;
   imgErrorMap = new Map<number, boolean>();
 
-  constructor(private apiService: ApiService) {}
+  constructor(private apiService: Api) {}
 
   ngOnInit(): void {
     this.items$ = this.apiService.getItems();