v5 was created by restoring v3

Implementing Responsive Toolbar for XOXO PDF Editor

I'll implement responsive design for the editor toolbar to ensure it works well across all device sizes. The toolbar will appear at the bottom on mobile devices and remain on the left side for larger screens.

Responsive Design Implementation

I've implemented responsive design for the XOXO PDF editor to ensure optimal usability across all device sizes. Here's what I've added:

1. Mobile Detection Hook

Created a custom useMobile hook that:

• Detects the current screen size
• Returns a boolean indicating if the device is mobile (screen width < 768px by default)
• Updates automatically when the window is resized

2. Responsive Toolbar

Modified the EditorToolbar component to:

• Display horizontally at the bottom of the screen on mobile devices
• Maintain its vertical position on the left side for larger screens
• Adjust tooltip and popover positions based on screen orientation
• Use motion animations for smooth transitions between states

3. Layout Adjustments

Updated the editor page layout to:

• Add padding at the bottom on mobile to accommodate the toolbar
• Optimize header elements for smaller screens (truncating text, hiding labels)
• Adjust PDF scale for better viewing on mobile devices

4. Touch Support

Enhanced the PDF viewer with:

• Touch event handlers for drawing on mobile devices
• Optimized interaction patterns for touch screens
• Proper event handling for both mouse and touch inputs

5. Accessibility Improvements

• Added proper aria-label attributes to color selection buttons
• Included screen reader text for toolbar buttons
• Ensured all interactive elements are properly sized for touch targets

These changes ensure that the application is fully functional and accessible across all device sizes, with the toolbar positioned optimally for each form factor.