Chore: Removed Mat Card from everywhere.

Chore: Removed the Toaster Service.
Chore: Updated to Material Theme 3

bookie/src/app/roles/role-list/role-list.component.ts

@@ -1,6 +1,5 @@
 import { Component, OnInit, inject } from '@angular/core';
 import { MatButtonModule } from '@angular/material/button';
-import { MatCardModule } from '@angular/material/card';
 import { MatIconModule } from '@angular/material/icon';
 import { MatTableModule } from '@angular/material/table';
 import { ActivatedRoute, RouterLink } from '@angular/router';
@@ -12,7 +11,7 @@ import { RoleListDataSource } from './role-list-datasource';
   selector: 'app-role-list',
   templateUrl: './role-list.component.html',
   styleUrls: ['./role-list.component.css'],
-  imports: [MatButtonModule, MatCardModule, MatIconModule, MatTableModule, RouterLink],
+  imports: [MatButtonModule, MatIconModule, MatTableModule, RouterLink],
 })
 export class RoleListComponent implements OnInit {
   private route = inject(ActivatedRoute);