- Updated ScopedListProformasPageView, ProformaUpdateEditorForm, ProformaUpdatePage, RecurringProformaCreatePage, and others to use RdxPageContent instead of RdxEditorLayout.
- Removed RdxPageStack and replaced it with RdxPageContent for consistent layout management.
- Deleted RdxEditorLayout component and its associated tests.
- Introduced RdxPageContent component to handle main content and optional aside layout.
- Adjusted tests to reflect changes in component structure and layout.
- Introduced `page-layouts.md` to outline approved page patterns for progressive adoption.
- Created `visual-system-design.md` to consolidate visual, architectural, and adoption decisions for a uniform UI/UX system in the ERP frontend.
- Added `RdxEditorActionBar` component for managing action bars in editor screens.
- Implemented `RdxPanel` component for grouping related content with optional headers and actions.
