Fix workspace dropdown (#19106)

## Before


https://github.com/user-attachments/assets/2ebc682d-f868-4a8b-8a1a-fe304222652e

## After


https://github.com/user-attachments/assets/e6fddab2-b5a1-4941-b60f-f45ad2bfaadd

packages/twenty-front/src/modules/ui/navigation/navigation-drawer/components/MultiWorkspaceDropdown/internal/MultiWorkspacesDropdownStyles.tsx

@@ -8,6 +8,7 @@ export const StyledContainer = styled.div<{
   align-items: center;
   border: 1px solid transparent;
   border-radius: ${themeCssVariables.border.radius.sm};
+  box-sizing: border-box;
   color: ${themeCssVariables.font.color.primary};
   cursor: pointer;
   display: flex;
@@ -16,6 +17,7 @@ export const StyledContainer = styled.div<{
   max-width: 100%;
   min-width: 0;
   padding: calc(${themeCssVariables.spacing[1]} - 1px);
+  width: fit-content;
   &:hover {
     background-color: ${themeCssVariables.background.transparent.lighter};
     border: 1px solid ${themeCssVariables.border.color.medium};