i18n for some components.

frontend/src/app/components/publications-search-bar/publications-search-bar.component.html

@@ -1,5 +1,5 @@
 <form [formGroup]="formGroup">
-    <input name="search-query" placeholder="Search something..." formControlName="criteria"/>
+    <input name="search-query" placeholder="Search something..." formControlName="criteria" i18n-placeholder/>
     <button type="submit" (click)="searchPublications()">
         <mat-icon>search</mat-icon>
     </button>

frontend/src/app/components/publications-search-bar/publications-search-bar.service.ts

@@ -1,18 +0,0 @@
-import { HttpParams } from "@angular/common/http";
-import { inject, Injectable } from "@angular/core";
-import { Router } from "@angular/router";
-import { BehaviorSubject } from "rxjs";
-
-@Injectable()
-export class PublicationsSearchBarService {
-    private router = inject(Router);
-    private criteriaSubject = new BehaviorSubject<string>('');
-
-    private cri
-
-    searchPublications(): void {
-        let queryParams = new HttpParams();
-        queryParams = queryParams.set('query', this.criteriaSubject.value);
-        this.router.navigate(['/publications'], {queryParams});
-    }
-}