Styling publications on home page.

frontend/src/app/core/rest-services/publications/model/author.ts

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+export interface Author {
+    id: string;
+    name: string;
+    image: string;
+}

frontend/src/app/core/rest-services/publications/model/publication.ts

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+import { Author } from "./author";
+
+export interface Publication {
+    id: string;
+    key: string;
+    title: string;
+    text: string;
+    parsedText: string;
+    description: string;
+    creationDate: Date;
+    illustrationId: string;
+    categoryId: string;
+    author: Author;
+}

frontend/src/app/core/rest-services/publications/publication.rest-service.ts

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+import { HttpClient } from '@angular/common/http';
+import { Injectable, inject } from '@angular/core';
+import { lastValueFrom } from 'rxjs';
+import { Publication } from './model/publication';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class PublicationRestService {
+  private httpClient = inject(HttpClient);
+
+  getLatest(): Promise<Publication[]> {
+    return lastValueFrom(this.httpClient.get<Publication[]>('/api/publications/latest'));
+  }
+}