refactor(ui): implement table-based navigation and responsive layout

This major UI overhaul introduces a modern table-based navigation system and
responsive layout, setting the foundation for future UI/UX improvements.

Key changes:
- Replace text-based navigation with Bubble Tea table component
- Add responsive frame and content layout with dynamic sizing
- Implement consistent table-based selection across all views
- Add proper state management for cursor and selection handling
- Improve loading states with custom messages and spinners
- Enhance back navigation with proper state cleanup
- Implement modern styling with Lipgloss borders and colors

Technical improvements:
- Move Category type to domain package for better organization
- Add table component initialization and styling
- Implement row-based selection handlers
- Add dynamic table updates based on current step
- Clean up provider descriptions for future integrations

This change builds upon recent improvements:
- Integrates with the new loading spinner system
- Enhances the category selection UI
- Complements the vim-style navigation
- Maintains all existing functionality while modernizing the interface

The new table-based UI provides a solid foundation for:
- Easier addition of new views and workflows
- Consistent selection behavior across all steps
- Better visual hierarchy and state management
- Future UI/UX improvements and customizations

Author: HenryOwenz

internal/domain/provider.go

@@ -18,6 +18,14 @@ type Service struct {
 	Available   bool
 }
 
+// Category represents a group of related operations within a service
+type Category struct {
+	ID          string
+	Name        string
+	Description string
+	Available   bool
+}
+
 // Operation represents an action that can be performed on a service
 type Operation struct {
 	ID          string
@@ -53,13 +61,13 @@ var DefaultProviders = []Provider{
 	{
 		ID:          "azure",
 		Name:        "Microsoft Azure",
-		Description: "Azure Cloud Platform (Coming Soon)",
+		Description: "Azure Cloud Platform",
 		Available:   false,
 	},
 	{
 		ID:          "gcp",
 		Name:        "Google Cloud Platform",
-		Description: "Google Cloud Services (Coming Soon)",
+		Description: "Google Cloud Services",
 		Available:   false,
 	},
 }