Add comprehensive UI component expansion

- Add new components: enhanced-table, fab-menu, icon-button, snackbar, select, tag-input, bottom-navigation, stepper, command-palette, floating-toolbar, transfer-list
- Refactor table-actions and select components
- Update component styles and exports
- Add corresponding demo components

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

projects/demo-ui-essentials/src/app/demos/toast-demo/toast-demo.component.scss

@@ -195,7 +195,7 @@
 }
 
 // Responsive Design
-@media (max-width: $semantic-breakpoint-md - 1) {
+@media (max-width: calc($semantic-breakpoint-md - 1px)) {
   .demo-container {
     padding: $semantic-spacing-layout-section-sm;
   }
@@ -220,7 +220,7 @@
   }
 }
 
-@media (max-width: $semantic-breakpoint-sm - 1) {
+@media (max-width: calc($semantic-breakpoint-sm - 1px)) {
   .demo-container {
     padding: $semantic-spacing-layout-section-xs;
   }