feat: add administration page and account role management

- Implemented `AdministrationContent` component for managing account roles.
- Created `AdministrationPage` to serve as the main entry point for administration tasks.
- Added PDF preview functionality with `PdfPreviewFrame` component for invoice generation.
- Introduced `InputColor` component for advanced color selection with various formats.
- Established color conversion utilities in `color-converter.ts` for handling color formats.
- Defined appearance-related schemas and types in `appearance.ts` for consistent theme management.

src/app/dashboard/invoices/_components/invoices-data-table.tsx

@@ -86,7 +86,7 @@ const getStatusType = (invoice: Invoice): StatusType =>
   getEffectiveInvoiceStatus(
     invoice.status as StoredInvoiceStatus,
     invoice.dueDate,
-  ) as StatusType;
+  );
 
 const formatDate = (date: Date) =>
   new Intl.DateTimeFormat("en-US", {