feat: Added notification dialog on frontend

src/app/admin-view/notifications/outbox/message/message.component.html

@@ -0,0 +1,31 @@
+<mat-card>
+    <mat-card-header>
+        <mat-card-title-group>
+            <mat-card-title>
+                {{item.title}}
+            </mat-card-title>
+            <mat-card-subtitle>{{item.sentDate.format('[Wysłano] dddd DD MMMM YYYYr. o HH:mm')}}</mat-card-subtitle>
+        </mat-card-title-group>
+    </mat-card-header>
+    <mat-card-content>
+        <p *ngIf="body">
+            {{body}}
+        </p>
+        <hr>
+        <ul>
+            @for (user of rcpts; track $index) {
+            <li>
+                <span *ngIf="user.room">{{user.room}}: </span>{{user.fname}} {{user.surname}} <span
+                    style="color: gray">({{user.uname}})</span>
+            </li>
+            }
+        </ul>
+    </mat-card-content>
+    <mat-card-footer>
+        <mat-card-actions>
+            <button mat-stroked-button (click)="getMessage()" *ngIf="!body">Wczytaj treść</button>
+            <button mat-stroked-button (click)="getRcpts()" *ngIf="!rcpts">Wczytaj odbiorców</button>
+            <mat-spinner diameter="32" color="accent" *ngIf="loading"></mat-spinner>
+        </mat-card-actions>
+    </mat-card-footer>
+</mat-card>