feat: move from life cycle to data or watcher

- remove from created / mounted
- initialize component services in data
- use immediate watcher where appropriate
- deep watch for route changes

src/components/user/settings/deletion.vue

@@ -91,14 +91,11 @@ export default {
 	name: 'user-settings-deletion',
 	data() {
 		return {
-			accountDeleteService: AccountDeleteService,
+			accountDeleteService: new AccountDeleteService(),
 			password: '',
 			errPasswordRequired: false,
 		}
 	},
-	created() {
-		this.accountDeleteService = new AccountDeleteService()
-	},
 	computed: mapState({
 		userDeletionEnabled: state => state.config.userDeletionEnabled,
 		deletionScheduledAt: state => parseDateOrNull(state.auth.info.deletionScheduledAt),