fix: append routeID to model proxy URL and drop X-GPUStack-Model header

src/locales/en-US/models.ts

@@ -61,6 +61,7 @@ export default {
   'models.table.layers': 'Layers',
   'models.form.backend': 'Backend',
   'models.form.backend_parameters': 'Backend Parameters',
+  'models.form.backend_parameters.injected': 'Injected Backend Parameters',
   'models.search.gguf.tips':
     'GGUF models use llama-box(supports Linux, macOS and Windows).',
   'models.search.vllm.tips':