fix: Minor bugs in UI (#7891)

## Description

- This PR fixed #7890

---------

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

packages/twenty-front/src/modules/object-record/record-board/record-board-column/components/RecordBoardColumnHeader.tsx

@@ -33,7 +33,7 @@ const StyledNumChildren = styled.div`
   height: 24px;
   justify-content: center;
   line-height: ${({ theme }) => theme.text.lineHeight.lg};
-  width: 16px;
+  width: 22px;
 `;
 
 const StyledHeaderActions = styled.div`

packages/twenty-front/src/modules/object-record/record-table/record-table-cell/components/RecordTableCellButton.tsx

@@ -3,10 +3,15 @@ import {
   AnimatedContainer,
   FloatingIconButton,
   IconComponent,
+  MOBILE_VIEWPORT,
 } from 'twenty-ui';
 
 const StyledButtonContainer = styled.div`
   margin: ${({ theme }) => theme.spacing(1)};
+  @media (max-width: ${MOBILE_VIEWPORT}px) {
+    position: relative;
+    right: 7px;
+  }
 `;
 
 type RecordTableCellButtonProps = {