Refactor MultipleObjectsPicker component (#10552)

Refactor to only have MultipleRecordPicker and SingleRecordPicker

What's done:
- SingleRecordPicker, MultipleRecordPicker
- RelationToOneInput
- RelationFromManyInput
- usage in TableCell, InlineCell, RelationDetailSection, Workflow

What's left:
- Make a pass on the app, to make sure the hotkeyScopes, clickOutside
are properly set
- Fix flashing on ActivityTarget
- add more tests on the code

packages/twenty-front/src/modules/ui/layout/dropdown/components/DropdownMenuItemsContainer.tsx

@@ -11,7 +11,7 @@ const StyledDropdownMenuItemsExternalContainer = styled.div<{
   display: flex;
 
   flex-direction: column;
-  max-height: ${({ hasMaxHeight }) => (hasMaxHeight ? '188px' : 'none')};
+  max-height: ${({ hasMaxHeight }) => (hasMaxHeight ? '168px' : 'none')};
 
   padding: var(--padding);
 
@@ -72,7 +72,6 @@ export const DropdownMenuItemsContainer = ({
     <ScrollWrapper
       contextProviderName="dropdownMenuItemsContainer"
       componentInstanceId={`scroll-wrapper-dropdown-menu-${id}`}
-      heightMode="fit-content"
     >
       <StyledDropdownMenuItemsExternalContainer
         hasMaxHeight={hasMaxHeight}