Fix UserNameDialog open error and add defensive ref check

- Added ref="userNameDialog" to UserNameDialog in AccountViewView.vue template
- Patched onEditName() to check for dialog ref and open() method before calling
- Improved error notification to use NotificationIface fields (group, type, title, text)
- Prevents "Cannot read properties of undefined (reading 'open')" error if dialog is missing

doc/migration-progress-tracker.md

@@ -176,8 +176,9 @@ export default class ComponentName extends Vue {
 - [ ] UserProfileView.vue
 
 ### **Components (15 files) - Priority 2**
-**Progress**: 0/15 (0%)
+**Progress**: 2/15 (13%)
 
+- [x] UserNameDialog.vue ✅ **MIGRATED**
 - [ ] ActivityListItem.vue
 - [ ] AmountInput.vue
 - [ ] ChoiceButtonDialog.vue
@@ -187,7 +188,7 @@ export default class ComponentName extends Vue {
 - [ ] EntityIcon.vue
 - [ ] EntitySelectionStep.vue
 - [ ] EntitySummaryButton.vue
-- [ ] FeedFilters.vue
+- [x] FeedFilters.vue ✅ **MIGRATED**
 - [ ] GiftDetailsStep.vue
 - [ ] GiftedDialog.vue
 - [ ] GiftedPrompts.vue
@@ -272,8 +273,8 @@ find src -name "*.vue" -o -name "*.ts" | xargs grep -l "import.*databaseUtil" |
 
 ### **Overall Progress**
 - **Total files to migrate**: 52
-- **Files migrated**: 0
-- **Progress**: 0%
+- **Files migrated**: 2
+- **Progress**: 4%
 
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