Fixes: Fixed some bugs #10703 (#11180)

### What problem does this PR solve?

Fixes: Fixed some bugs #10703

- Removed S3 upload from the file upload component
- Updated the dropdown menu style on the model provider page
- Updated some model provider icons
- Fixed other style issues

### Type of change

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

web/src/pages/user-setting/data-source/add-datasource-modal.tsx

@@ -63,7 +63,7 @@ const AddDataSourceModal = ({
           ] as FieldValues
         }
       >
-        <div className="flex items-center justify-end w-full gap-2">
+        <div className="flex items-center justify-end w-full gap-2 py-4">
           <DynamicForm.CancelButton
             handleCancel={() => {
               hideModal?.();