Add IMDb movie importer feature and unify header

Introduces a new movie importer feature allowing admins to search and import movies from IMDb, including new components for search, result display, and error handling. Replaces the schedule header with a reusable menu header component. Updates routing, navigation, and HTTP service to support the new importer. Adds a poster placeholder image and improves poster error handling.

src/app/movie-importer/movie-importer.component.ts

@@ -0,0 +1,58 @@
+import { LoadingService } from './../loading.service';
+import { Component, inject } from '@angular/core';
+import { FormControl } from '@angular/forms';
+import { catchError, finalize, of, tap } from 'rxjs';
+import { HttpService } from '../http.service';
+import { OmdbMovie } from '@infinimotion/model-frontend';
+
+@Component({
+  selector: 'app-movie-importer',
+  standalone: false,
+  templateUrl: './movie-importer.component.html',
+  styleUrl: './movie-importer.component.css'
+})
+export class MovieImporterComponent {
+  formControl = new FormControl('')
+
+  movies: OmdbMovie[] = [];
+  search_query: string = '';
+  showAll = false;
+  isSearching = false;
+
+  private httpService = inject(HttpService)
+  public loadingService = inject(LoadingService)
+
+  DoSubmit() {
+    this.showAll = false;
+    this.searchForMovies();
+  }
+
+  searchForMovies() {
+    this.search_query = this.formControl.value?.trim() || '';
+    if (this.search_query?.length == 0) return;
+
+    this.isSearching = true;
+    this.formControl.disable();
+    this.loadingService.show();
+
+    this.httpService.searchMovie(this.search_query).pipe(
+      tap(movies => {
+        this.movies = movies.search || [] ;
+        this.loadingService.hide();
+      }),
+      catchError(err => {
+        this.loadingService.showError(err);
+        console.error('Fehler bei der Suchen', err);
+        return of([]);
+      }),
+      finalize(() => {
+        this.isSearching = false;
+        this.formControl.enable();
+      })
+    ).subscribe();
+  }
+
+  toggleShowAll() {
+    this.showAll = !this.showAll;
+  }
+}