Fix side panel close button title (#19638)

## Before
<img width="830" height="1486" alt="CleanShot 2026-04-13 at 15 07 19@2x"
src="https://github.com/user-attachments/assets/757a52bb-f06e-4f04-950a-087cbdec0653"
/>


## After
<img width="838" height="1478" alt="CleanShot 2026-04-13 at 15 06 56@2x"
src="https://github.com/user-attachments/assets/ed9d99ab-fbda-4548-b09a-e7825d86b5dd"
/>

packages/twenty-front/src/modules/side-panel/components/SidePanelToggleButton.tsx

@@ -44,7 +44,7 @@ export const SidePanelToggleButton = () => {
         size={isMobile ? 'medium' : 'small'}
         variant="secondary"
         accent="default"
-        title={t`More`}
+        title={isSidePanelOpened ? t`Close` : t`More`}
         ariaLabel={ariaLabel}
         onClick={toggleSidePanelMenu}
       />