feat: integrate UserPreferencesContext for improved preference management

- Added `UserPreferencesProvider` to `RootLayout` for centralized user preferences handling.
- Updated components to remove direct user preferences fetching, relying on context instead.
- Enhanced SSR data fetching by consolidating user preferences retrieval into a single service call.
- Cleaned up unused props in various components to streamline the codebase.

src/app/weekly-manager/WeeklyManagerPageClient.tsx

@@ -1,32 +1,27 @@
 'use client';
 
 import { TasksProvider } from '@/contexts/TasksContext';
-import { UserPreferencesProvider } from '@/contexts/UserPreferencesContext';
 import ManagerWeeklySummary from '@/components/dashboard/ManagerWeeklySummary';
 import { ManagerSummary } from '@/services/manager-summary';
-import { Task, Tag, UserPreferences } from '@/lib/types';
+import { Task, Tag } from '@/lib/types';
 
 interface WeeklyManagerPageClientProps {
   initialSummary: ManagerSummary;
   initialTasks: Task[];
   initialTags: (Tag & { usage: number })[];
-  initialPreferences: UserPreferences;
 }
 
 export function WeeklyManagerPageClient({ 
   initialSummary, 
   initialTasks, 
-  initialTags, 
-  initialPreferences 
+  initialTags
 }: WeeklyManagerPageClientProps) {
   return (
-    <UserPreferencesProvider initialPreferences={initialPreferences}>
-      <TasksProvider 
-        initialTasks={initialTasks}
-        initialTags={initialTags}
-      >
-        <ManagerWeeklySummary initialSummary={initialSummary} />
-      </TasksProvider>
-    </UserPreferencesProvider>
+    <TasksProvider 
+      initialTasks={initialTasks}
+      initialTags={initialTags}
+    >
+      <ManagerWeeklySummary initialSummary={initialSummary} />
+    </TasksProvider>
   );
 }