Hide the "Expand to Full Page" button on Email and Calendar pages (#8615)

### Overview
This pull request addresses issue #8612 by ensuring the "Expand to Full
Page" button does not appear on the Email and Calendar pages in the
right drawer.

### Changes Made
- Added conditions in the `RightDrawerTopBar` component to prevent the
`RightDrawerTopBarExpandButton` from rendering on:
  - Email pages (`RightDrawerPages.ViewEmailThread`)
  - Calendar pages (`RightDrawerPages.ViewCalendarEvent`)
- Verified that the button still renders correctly on other pages, such
as Record pages.

### Testing
Since I couldn't run the project locally, I was unable to confirm the
changes in a running environment. However, the logic has been carefully
updated to ensure the button is conditionally hidden based on the
current `rightDrawerPage` state.

### Additional Notes
Please let me know if further adjustments are needed or if there are any
issues during testing. Thank you for reviewing this PR!

---------

Co-authored-by: Weiko <corentin@twenty.com>

packages/twenty-front/src/modules/ui/layout/right-drawer/components/RightDrawerTopBar.tsx

@@ -85,13 +85,14 @@ export const RightDrawerTopBar = () => {
 
   const ObjectIcon = getIcon(objectMetadataItem.icon);
 
-  const label =
-    rightDrawerPage === RightDrawerPages.ViewRecord
+  const isViewRecordRightDrawerPage =
+    rightDrawerPage === RightDrawerPages.ViewRecord;
+
+  const label = isViewRecordRightDrawerPage
     ? objectMetadataItem.labelSingular
     : RIGHT_DRAWER_PAGE_TITLES[rightDrawerPage];
 
-  const Icon =
-    rightDrawerPage === RightDrawerPages.ViewRecord ? ObjectIcon : PageIcon;
+  const Icon = isViewRecordRightDrawerPage ? ObjectIcon : PageIcon;
 
   return (
     <StyledRightDrawerTopBar
@@ -122,7 +123,9 @@ export const RightDrawerTopBar = () => {
           <RightDrawerTopBarMinimizeButton />
         )}
 
-        {!isMobile && !isRightDrawerMinimized && (
+        {!isMobile &&
+          !isRightDrawerMinimized &&
+          isViewRecordRightDrawerPage && (
             <RightDrawerTopBarExpandButton
               to={
                 getBasePathToShowPage({
@@ -131,6 +134,7 @@ export const RightDrawerTopBar = () => {
               }
             />
           )}
+
         <RightDrawerTopBarCloseButton />
       </StyledTopBarWrapper>
     </StyledRightDrawerTopBar>