Migrate to twenty-ui - input/button (#7994)

This PR was created by [GitStart](https://gitstart.com/) to address the
requirements from this ticket:
[TWNTY-7529](https://clients.gitstart.com/twenty/5449/tickets/TWNTY-7529).

 --- 

### Description

- Migrated all button components to `twenty-ui`    \
  \
  `Button`\
  `ButtonGroup`\
  `ColorPickerButton`\
  `FloatingButton`\
  `FloatingButtonGroup`\
  `FloatingIconButton`\
  `FloatingIconButtonGroup`\
  `IconButton`\
  `IconButtonGroup`\
  `LightButton`\
  `LightIconButton`\
  `LightIconButtonGroup`\
  `MainButton`\
  \
  Fixes twentyhq/private-issues#89

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

packages/twenty-front/src/modules/settings/components/SaveAndCancelButtons/CancelButton.tsx

@@ -1,4 +1,4 @@
-import { LightButton } from '@/ui/input/button/components/LightButton';
+import { LightButton } from 'twenty-ui';
 
 type CancelButtonProps = {
   onCancel?: () => void;

packages/twenty-front/src/modules/settings/components/SaveAndCancelButtons/SaveButton.tsx

@@ -1,6 +1,4 @@
-import { IconDeviceFloppy } from 'twenty-ui';
-
-import { Button } from '@/ui/input/button/components/Button';
+import { Button, IconDeviceFloppy } from 'twenty-ui';
 
 type SaveButtonProps = {
   onSave?: () => void;