fix(file-input): instantiation fails because of super styles (#1647)

Co-authored-by: Radoslav Karaivanov <[email protected]>

Author: simeonoff

src/components/file-input/file-input.ts

@@ -46,7 +46,7 @@ import { fileValidators } from './validators.js';
 export default class IgcFileInputComponent extends IgcInputBaseComponent {
   private _hasActivation = false;
   public static readonly tagName = 'igc-file-input';
-  public static override styles = [...super.styles, styles];
+  public static override styles = [...IgcInputBaseComponent.styles, styles];
 
   /* blazorSuppress */
   public static register() {