839 Table focus refactoring (#11629)

# Table Focus Refactoring

This pull request implements the table focus refactoring requested in
[#839](https://github.com/twentyhq/core-team-issues/issues/839),
dissociating hover and focus behaviors in the table component to improve
keyboard navigation.

## Technical Implementation

- Created separate component states to handle focus and hover
independently.
- Updated all relevant hooks and functions to use the new focus
mechanism.
- Removed deprecated states and hooks.
- Introduced dedicated portal components to improve the table
performance (the table cells are much simpler and the more complex logic
is handled via the portals)

## Key Behavior Changes

- Performance improvements
- Focus is now handled exclusively with keyboard navigation
- Clicking on a cell or inline-cell now sets the focus to that cell
- Hover state is managed separately from focus, improving user
experience and accessibility
- The table scrolls when the focused cell changes

## Video



https://github.com/user-attachments/assets/9966beac-3b0f-4433-a87a-299506d83353

packages/twenty-front/src/testing/decorators/RecordTableDecorator.tsx

@@ -85,7 +85,7 @@ const InternalTableContextProviders = ({
             onOpenTableCell: () => {},
             onActionMenuDropdownOpened: () => {},
             onMoveFocus: () => {},
-            onMoveSoftFocusToCurrentCell: () => {},
+            onMoveHoverToCurrentCell: () => {},
           }}
         >
           {children}