Remove overlay-scroll-bar (#11258)

## What

- Deprecate overlayscrollbars as we decided to follow the native
behavior
- rework on performances (avoid calling recoil states too much at field
level which is quite expensive)
- Also implements:
https://github.com/twentyhq/core-team-issues/issues/569

---------

Co-authored-by: Lucas Bordeau <bordeau.lucas@gmail.com>

packages/twenty-front/src/modules/activities/timeline-activities/rows/main-object/components/EventFieldDiffValue.tsx

@@ -54,6 +54,7 @@ export const EventFieldDiffValue = ({
               defaultValue: fieldMetadataItem.defaultValue,
             },
             hotkeyScope: 'field-event-diff',
+            isReadOnly: false,
           }}
         >
           <FieldDisplay />