feat: enhance dashboard layout and UI components for improved responsiveness

- Introduce new 'xs' screen size in Tailwind configuration for better mobile support
- Update dashboard layout to use a cosmic gradient background for a modern look
- Refactor Quick Actions component for improved styling and layout consistency
- Add Current Open Invoice Card for quick access to ongoing invoices
- Standardize button sizes across various components for a cohesive user experience
- Implement responsive design adjustments in invoice forms and data tables

This update enhances the overall user experience by improving responsiveness and visual appeal across the dashboard and related components.

tailwind.config.ts

@@ -10,6 +10,9 @@ export default {
   ],
   theme: {
     extend: {
+      screens: {
+        xs: "475px",
+      },
       fontFamily: {
         sans: [
           "var(--font-geist-sans)",