Make appeal form centered and create landing page

frontend/src/app/pages/forms/appeal/appeal.component.ts

@@ -2,11 +2,17 @@ import {AfterViewInit, Component, ElementRef, OnInit, Renderer2} from '@angular/
 import {FormControl, FormGroup, Validators} from '@angular/forms';
 import {AppealsService, MinecraftAppeal} from '@api';
 import {HeaderComponent} from '@header/header.component';
+import {NgOptimizedImage} from '@angular/common';
+import {MatButtonModule} from '@angular/material/button';
+import {MatIconModule} from '@angular/material/icon';
 
 @Component({
   selector: 'app-appeal',
   imports: [
-    HeaderComponent
+    HeaderComponent,
+    NgOptimizedImage,
+    MatButtonModule,
+    MatIconModule
   ],
   templateUrl: './appeal.component.html',
   styleUrl: './appeal.component.scss'