Add wiz theme

frontend/src/app/components/theme-selector/theme-selector.component.html

@@ -2,5 +2,6 @@
     <select formControlName="theme" class="custom-select custom-select-sm form-control-secondary form-control mx-auto" (change)="changeTheme()">
         <option value="default" i18n="mempool-goggles.classic">Classic</option>
         <option value="contrast">BlueMatt</option>
+        <option value="wiz">Wiz</option>
     </select>
 </div>

frontend/src/app/components/theme-selector/theme-selector.component.ts

@@ -10,7 +10,7 @@ import { ThemeService } from '../../services/theme.service';
 })
 export class ThemeSelectorComponent implements OnInit {
   themeForm: UntypedFormGroup;
-  themes = ['default', 'contrast'];
+  themes = ['default', 'contrast', 'wiz'];
 
   constructor(
     private formBuilder: UntypedFormBuilder,