Enhance Error Handling and Validation Feedback in Form Components

- Updated error handling in `EditSubmissionModal.vue`, `OpenCompleteForm.vue`, and `OpenForm.vue` to utilize a new `formValidationError` method for improved user feedback on validation issues.
- Introduced `formValidationError` function in `useAlert.js` to format and display validation errors more effectively, including detailed error messages for multiple fields.
- These changes aim to provide clearer and more actionable feedback to users when form submissions fail due to validation errors, enhancing the overall user experience.

client/components/open/components/EditSubmissionModal.vue

@@ -61,6 +61,9 @@ const updateForm = (form, onFailure) => {
     })
     .catch((error) => {
       console.error(error)
+      if (error?.data) {
+        useAlert().formValidationError(error.data)
+      }
       loading.value = false
       onFailure()
     })