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/_components/revenue-chart.tsx

@@ -10,8 +10,6 @@ import {
 } from "recharts";
 import { useAnimationPreferences } from "~/components/providers/animation-preferences-provider";
 
-
-
 interface RevenueChartProps {
   data: {
     month: string;
@@ -91,7 +89,11 @@ export function RevenueChart({ data }: RevenueChartProps) {
         <AreaChart data={chartData}>
           <defs>
             <linearGradient id="revenueGradient" x1="0" y1="0" x2="0" y2="1">
-              <stop offset="5%" stopColor="hsl(217, 91%, 60%)" stopOpacity={0.4} />
+              <stop
+                offset="5%"
+                stopColor="hsl(217, 91%, 60%)"
+                stopOpacity={0.4}
+              />
               <stop
                 offset="95%"
                 stopColor="hsl(217, 91%, 60%)"