check file size in server action

src/app/website/report/Dropzone.svelte

@@ -1,15 +1,12 @@
 <script lang="ts">
   import { popupState } from '@components/popup/Popup.ts';
+  import { allowedImageTypes, allowedVideoTypes } from '@util/media.ts';
 
   // bindings
   let containerElem: HTMLDivElement;
   let hiddenFileInputElem: HTMLInputElement;
   let previewDialogElem: HTMLDialogElement;
 
-  // consts
-  const allowedImageTypes = ['image/png', 'image/jpeg', 'image/webp', 'image/avif'];
-  const allowedVideoTypes = ['video/mp4', 'video/webm'];
-
   // types
   interface Props {
     maxFilesBytes: number;