Add movie search and schedule header components

Introduces MovieSearchComponent, ScheduleHeaderComponent, and MovieScheduleNoSearchResultComponent for improved movie search and schedule display. Updates schedule and navbar to support search functionality and UI enhancements. Adds movie fetching to HttpService and refines layout and styles for better user experience.

src/app/movie-search/movie-search.component.html

@@ -0,0 +1,16 @@
+<form class="movie-search-form w-88">
+  <mat-form-field class="w-full" subscriptSizing="dynamic">
+    <mat-label>Film suchen</mat-label>
+    <input class="w-full" type="text" matInput [formControl]="searchControl" [matAutocomplete]="auto" (click)="searchControl.setValue('')">
+
+    <!-- @if (searchControl.hasError('filmNotFound')) { -->
+      <!-- <mat-error>Film existiert nicht</mat-error> -->
+    <!-- } -->
+
+    <mat-autocomplete autoActiveFirstOption #auto="matAutocomplete">
+      @for (option of filteredOptions | async; track option) {
+        <mat-option [value]="option">{{option}}</mat-option>
+      }
+    </mat-autocomplete>
+  </mat-form-field>
+</form>