- Replace individual page background images with global page background in App.vue
- Update pages.json global styles to use transparent colors for navigation and backgrounds
- Remove redundant bg-image elements and styles from all page components
- Set global page background with login_bg.png image, cover sizing, and fixed attachment
- Simplify individual page styling by removing duplicate background color declarations
- Consolidate background management to single source of truth in App.vue for consistent theming
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