fix: do not paste multiple lines

src/locales/en-US/models.ts

@@ -238,5 +238,5 @@ export default {
   'models.form.draftModel.tips':
     'You can enter a local path (e.g., /path/to/model) or select a model from Hugging Face or ModelScope (e.g., Tengyunw/qwen3_8b_eagle3). The system will automatically match based on the primary model source.',
   'models.form.quantization': 'Quantization',
-  'models.form.backend.custom': 'User Defined'
+  'models.form.backend.custom': 'User-defined'
 };