Optimize user management interface for mobile devices with PWA support

[tjementum]

Summary & Motivation

This change transforms the user management interface into a mobile-first experience with Progressive Web App (PWA) capabilities. The changes ensure that the application feels native on mobile devices while maintaining full functionality.

Changes include:

• Added PWA manifest and service worker for installable app experience
• Implemented full-screen dialogs and modals on mobile devices
• Added infinite scroll for user lists on mobile with optimized performance
• Integrated iOS-specific optimizations:
  • Dynamic Island support
  • Safe area handling for notched devices
  • Viewport fit adjustments
• Enhanced touch interactions with axis locking for smooth scrolling
• Converted table layouts to responsive cards on mobile
• Fixed mobile menu overlays and navigation
• Added keyboard navigation support for accessibility
• Optimized avatar upload and image handling for mobile
• Improved form layouts and input fields for touch devices
• Added "Add to Home Screen" prompt component
• Implemented responsive breakpoints throughout the UI
• Enhanced modal positioning to respect safe areas
• Added mobile-specific scroll behavior improvements
• Optimized button sizes and touch targets for mobile
• Fixed dropdown and select components for mobile viewports
• Added proper viewport meta tags for mobile optimization
• Improved loading states and animations for mobile performance

The motivation is to provide administrators with a seamless experience when managing users on mobile devices, whether accessing through a browser or as an installed PWA. This enables on-the-go administration without compromising functionality or user experience.

Checklist

• I have added tests, or done manual regression tests
• I have updated the documentation, if necessary

[linear]

PP-427 Optimize user management for mobile devices

[sonarqubecloud]

Quality Gate passed

Issues
14 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.8% Duplication on New Code

See analysis details on SonarQube Cloud