Add "new publication" button.

frontend/src/app/pages/my-publications/my-publications.component.ts

@@ -5,6 +5,8 @@ import { Observable } from "rxjs";
 import { PublicationListComponent } from "../../components/publication-list/publication-list.component";
 import { Publication } from "../../core/rest-services/publications/model/publication";
 import { CommonModule } from "@angular/common";
+import { RouterModule } from "@angular/router";
+import { MatTooltipModule } from "@angular/material/tooltip";
 
 
 @Component({
@@ -12,7 +14,13 @@ import { CommonModule } from "@angular/common";
     standalone: true,
     templateUrl: './my-publications.component.html',
     styleUrl: './my-publications.component.scss',
-    imports: [CommonModule, MatProgressSpinnerModule, PublicationListComponent],
+    imports: [
+        CommonModule,
+        MatProgressSpinnerModule,
+        PublicationListComponent,
+        MatTooltipModule,
+        RouterModule
+    ],
     providers: [MyPublicationsService]
 })
 export class MyPublicationsComponent implements OnInit {