use backend seed assets

backend/database/seeders/ElementSeeder.php

@@ -17,16 +17,9 @@ class ElementSeeder extends Seeder
         $elementRepository = app(ElementRepository::class);
         $baderechSet = $setRepository->find(1);
         $rootIconImageUrl = $this->seedStorageFile(
-            base_path(
-                '../frontend/rabbi_gerzi/public/assets/'
-                    . 'baderech-haavodah-icon.png',
-            ),
             'element-icons/baderech-haavodah-icon.png',
         );
         $introductionPdfPath = $this->seedStorageFile(
-            base_path(
-                '../frontend/rabbi_gerzi/public/assets/pdfs/baderech.pdf',
-            ),
             'element-pdfs/baderech.pdf',
         );
 
@@ -132,9 +125,11 @@ class ElementSeeder extends Seeder
     }
 
     private function seedStorageFile(
-        string $sourcePath,
         string $storagePath,
     ): string {
+        $sourcePath = base_path(
+            "database/seeders/assets/$storagePath",
+        );
         $contents = file_get_contents($sourcePath);
         if ($contents === false) {
             throw new RuntimeException("Seed file missing: $sourcePath");