4810 display participants in the right drawer of the calendar event (#4896)

Closes #4810

- Introduces a new component `ExpandableList` which uses intersection
observers to display the maximum number of elements possible

packages/twenty-front/src/modules/ui/layout/right-drawer/components/RightDrawerRouter.tsx

@@ -23,7 +23,7 @@ const StyledRightDrawerBody = styled.div`
   height: calc(
     100vh - ${({ theme }) => theme.spacing(14)} - 1px
   ); // (-1 for border)
-  overflow: auto;
+  //overflow: auto;
   position: relative;
 `;