Migrate to twenty-ui - feedback/loader (#7997)

This PR was created by [GitStart](https://gitstart.com/) to address the
requirements from this ticket:
[TWNTY-7528](https://clients.gitstart.com/twenty/5449/tickets/TWNTY-7528).

 --- 

### Description

- Move loader components to `twenty-ui`    
  
Fixes  twentyhq/private-issues#90

---------

Co-authored-by: gitstart-twenty <gitstart-twenty@users.noreply.github.com>
Co-authored-by: Charles Bochet <charles@twenty.com>

packages/twenty-front/src/modules/activities/emails/components/EmailLoader.tsx

@@ -1,9 +1,9 @@
-import { Loader } from '@/ui/feedback/loader/components/Loader';
 import {
   AnimatedPlaceholder,
   AnimatedPlaceholderEmptyContainer,
   AnimatedPlaceholderEmptyTextContainer,
   AnimatedPlaceholderEmptyTitle,
+  Loader,
 } from 'twenty-ui';
 
 export const EmailLoader = ({ loadingText }: { loadingText?: string }) => (