Implement account deletion handling and improve user feedback

- Added checks for accounts marked for deletion in signup, verification, and password reset processes.
- Updated reward and task listing to sort user-created items first.
- Enhanced user API to clear verification and reset tokens when marking accounts for deletion.
- Introduced tests for marked accounts to ensure proper handling in various scenarios.
- Updated profile and reward edit components to reflect changes in validation and data handling.

frontend/vue-app/src/components/profile/UserProfile.vue

@@ -231,6 +231,8 @@ async function updateProfile(form: {
   })
     .then(async (res) => {
       if (!res.ok) throw new Error('Failed to update profile')
+      // Update initialData to reflect the saved state
+      initialData.value = { ...form }
       modalTitle.value = 'Profile Updated'
       modalSubtitle.value = ''
       modalMessage.value = 'Your profile was updated successfully.'
@@ -245,7 +247,11 @@ async function updateProfile(form: {
 }
 
 async function handlePasswordModalClose() {
+  const wasProfileUpdate = modalTitle.value === 'Profile Updated'
   showModal.value = false
+  if (wasProfileUpdate) {
+    router.back()
+  }
 }
 
 async function resetPassword() {