Rename shared-ui to ui-design-system

- More descriptive name for design system library
- Update all imports and configurations
- No functional changes

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

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

projects/ui-design-system/src/styles/commons/_index.scss

@@ -0,0 +1,11 @@
+// ==========================================================================
+// COMMONS INDEX
+// ==========================================================================
+// Import all commons modules in the correct order
+// Theme-agnostic styles that work across all themes
+// ==========================================================================
+
+@import 'layouts';
+@import 'components';
+@import 'patterns';
+@import 'utilities';