Fix dataset edit error handling

src/components/Corpus/Datasets/EditModal.vue

@@ -202,11 +202,7 @@ export default {
         this.$emit('update:modelValue', false)
       } catch (e) {
         if (e.response?.status === 400 && e.response.data) {
-          this.fieldErrors = Object.fromEntries(
-            Object
-              .entries(e.response.data)
-              .map(([key, value]) => [key, this.parseFieldErrors(value)])
-          )
+          this.fieldErrors = this.parseFieldErrors(e.response.data)
         }
       } finally {
         this.createLoading = false