fix: recordBoard sticky header + scrollThumb (#8946)

Fixes: #8944 

[Screencast from 2024-12-08
00-43-19.webm](https://github.com/user-attachments/assets/b6e15fcc-46a1-4ab0-aacf-86056248bb69)

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

packages/twenty-front/src/modules/ui/utilities/scroll/components/ScrollWrapper.tsx

@@ -17,7 +17,7 @@ import 'overlayscrollbars/overlayscrollbars.css';
 
 const StyledScrollWrapper = styled.div<{ scrollHide?: boolean }>`
   display: flex;
-  height: fit-content;
+  height: 100%;
   width: 100%;
 
   .os-scrollbar-handle {