style: fix line length in ContactsView ternary operator

- Break long CSS class strings into multiple concatenated lines
- Ensure all lines are under 100 characters for better readability
- Maintain same functionality and styling behavior
- Improve code maintainability and readability

Fixes: Long lines in conditional CSS class assignment

src/views/ContactQRScanShowView.vue

@@ -779,7 +779,9 @@ export default class ContactQRScanShow extends Vue {
 
       // Add new contact
       // @ts-expect-error because we're just using the value to store to the DB
-      contact.contactMethods = JSON.stringify(parseJsonField(contact.contactMethods, []));
+      contact.contactMethods = JSON.stringify(
+        parseJsonField(contact.contactMethods, []),
+      );
       const { sql, params } = databaseUtil.generateInsertStatement(
         contact as unknown as Record<string, unknown>,
         "contacts",