add fileType to new File in fileupload (#1343)

* add fileType to new File in fileupload

* add changeset

Author: aulonm

.changeset/shaggy-cycles-go.md

@@ -0,0 +1,5 @@
+---
+"@obosbbl/grunnmuren-react": patch
+---
+
+FileUpload: fix bug with not adding fileType to files that have been renamed

packages/react/src/file-upload/file-upload.tsx

@@ -99,6 +99,9 @@ function uniqueFileNames(files: File[]) {
         [file],
         // Follow the pattern of adding a number in parentheses to the base name (e.g. "file (1).txt")
         `${baseName} (${fileNameCounts[baseName] - 1})${extension}`,
+        {
+          type: file.type,
+        },
       );
     }