fix: #567 use modal to upload files in the knowledge base (#601)

### What problem does this PR solve?

fix:  #567 use modal to upload files in the knowledge base

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/pages/user-setting/setting-model/index.less

@@ -1,5 +1,9 @@
 .modelWrapper {
   width: 100%;
+}
+
+.modelContainer {
+  width: 100%;
   .factoryOperationWrapper {
     text-align: right;
   }