Add ripple everywhere.

frontend/src/app/components/confirmation-dialog/confirmation-dialog.component.ts

@@ -1,4 +1,5 @@
 import { Component, inject, Input } from "@angular/core";
+import { MatRippleModule } from "@angular/material/core";
 import { MAT_DIALOG_DATA, MatDialogRef } from "@angular/material/dialog";
 
 export interface ConfirmationDialogData {
@@ -11,7 +12,7 @@ export interface ConfirmationDialogData {
     standalone: true,
     templateUrl: './confirmation-dialog.component.html',
     styleUrl: './confirmation-dialog.component.scss',
-    imports: []
+    imports: [MatRippleModule]
 })
 export class ConfirmationDialog {
     private readonly dialogRef = inject(MatDialogRef<ConfirmationDialog>);