Database Modal: (apache#20637)

- Since our DatabaseConnectionForm is wrapped in a AntD Form, we need to ensure our custom design is applied in the upload input instead of AntD default one for file input type=file.

superset-frontend/src/views/CRUD/data/database/DatabaseModal/styles.ts

@@ -509,7 +509,7 @@ export const CredentialInfoForm = styled.div`
 
   .input-container {
     .input-upload {
-      display: none;
+      display: none !important;
     }
     .input-upload-current {
       display: flex;