Implement Mark as Cleaned functionality

- Add showCleaned filter to FilterState type
- Update MapView to show green markers with checkmark for cleaned reports
- Add cleaned status filter toggle in MapFilters component
- Display cleaned information in ReportDetailModal
- Hide action buttons for already cleaned reports
- Wire up markAsCleaned functionality in MapPage
- Backend endpoint and database fields already in place

src/types/index.ts

@@ -141,6 +141,7 @@ export interface FilterState {
   litterTypes?: LitterType[];
   quantities?: QuantityLevel[];
   verificationStatus?: VerificationStatus[];
+  showCleaned?: boolean;
 }
 
 // Analytics types