Add search publication page and fix category access

frontend/src/app/components/publication-list/publication-list.component.ts

@@ -0,0 +1,18 @@
+import { Component, Input } from "@angular/core";
+import { Publication } from "../../core/rest-services/publications/model/publication";
+import { Observable } from "rxjs";
+import { CommonModule } from "@angular/common";
+import { RouterModule } from "@angular/router";
+import { MatTooltipModule } from "@angular/material/tooltip";
+
+@Component({
+    selector: 'app-publication-list',
+    standalone: true,
+    templateUrl: './publication-list.component.html',
+    styleUrl: './publication-list.component.scss',
+    imports: [CommonModule, RouterModule, MatTooltipModule]
+})
+export class PublicationListComponent {
+    @Input()
+    publications$!: Observable<Publication[]>;
+}