refactor: centreer sprint-switcher en verwijder badges uit dropdown items

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

components/shared/sprint-switcher.tsx

@@ -105,27 +105,16 @@ export function SprintSwitcher({
         )}
         <ChevronDown className="w-3 h-3 shrink-0 text-muted-foreground" />
       </DropdownMenuTrigger>
-      <DropdownMenuContent align="start" className="w-64">
+      <DropdownMenuContent align="center" className="w-64">
         {sprints.map(s => (
           <DropdownMenuItem
             key={s.id}
             onClick={() => handleSwitchSprint(s.id)}
             className={cn(
-              'flex items-center justify-between gap-2',
               s.id === activeSprint?.id && 'bg-primary-container text-primary-container-foreground font-medium',
             )}
           >
             <span className="truncate">{s.code}</span>
-            <Badge
-              className={cn(
-                'text-[10px] px-1.5 py-0 shrink-0',
-                buildingSet.has(s.id)
-                  ? 'bg-warning text-warning-foreground'
-                  : SPRINT_STATUS_BADGE[s.status],
-              )}
-            >
-              {buildingSet.has(s.id) ? 'BUILDING' : SPRINT_STATUS_LABEL[s.status]}
-            </Badge>
           </DropdownMenuItem>
         ))}
       </DropdownMenuContent>