fix: kanban column margin should extend to bottom (#8394)

Fixes: #7868 

[Screencast from 2024-11-08
13-33-47.webm](https://github.com/user-attachments/assets/1de620d8-8f05-43f8-bde9-a2c9cbea4b9f)

---------

Co-authored-by: ehconitin <nitinkoche03@gmail.com>

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

@@ -26,8 +26,6 @@ const StyledContainer = styled.div`
   display: flex;
   flex: 1;
   flex-direction: row;
-  min-height: calc(100% - 1px);
-  height: 100%;
 `;
 
 const StyledColumnContainer = styled.div`

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

@@ -12,14 +12,10 @@ const StyledColumn = styled.div`
   flex-direction: column;
   max-width: 200px;
   min-width: 200px;
-
   padding: ${({ theme }) => theme.spacing(2)};
-
   padding-top: 0px;
-
   position: relative;
-
-  min-height: 100%;
+  height: 100%;
 `;
 
 type RecordBoardColumnProps = {