Fix the broken progress tracking on epub books across reader tabs

fix: drag drop conflicts with other browser extensions

Version 0.3.1 adds a toggle button allowing users to intercept epub downloads for display.

Technical Implemented Fix

Updated the background interception logic in index.js so EPUB detection no longer depends only on URL paths ending with .epub.

Interception now recognizes EPUB downloads by:
- URL patterns like .epub.images and similar variants
- Download filename ending in .epub (important for opaque URLs like /file)
- MIME type application/epub+zip

New Features

1. Enhanced EPUB Renderer

• Welcome Screen: A new, beautiful welcome screen when no book is loaded
• Informative feature list (customizable font size, TOC navigation, continuous scrolling)
• Clear instructions for opening EPUB files
• Loading State: Dedicated loading screen with spinner while book content loads

2. Interactive Sidebar with Advanced Features

• Interactive Table of Contents:
• Expand/collapse functionality for nested chapters
• Active chapter highlighting with a visual indicator
• Auto-expand parent sections when navigating to sub-chapters
• Smooth expand/collapse animations
• Custom scrollbar styling
• Professional Styling: Enhanced visual design with hover effects and transitions
• Fix: fixed the padding between the sidebar and the header toolbar that caused a broken UI on small devices

3. Zoom Control Improvements

• Fixed Zoom Dropdown: Zoom level dropdown now accurately reflects current zoom state
• Better Synchronization: Improved coordination between zoom buttons and dropdown selector

4. Visual Design Overhaul

• Color Scheme Update: Changed primary accent color from blue (#646cff) to vibrant green (#10b981)
• Applied consistently across buttons, links, active states, and highlights
• Improved visual hierarchy and modern appearance
• Enhanced UI Elements: Updated buttons, controls, and interactive elements with a new color palette

Technical Improvements

1. Component Architecture

• New EpubRenderer Component: Separated rendering logic into dedicated component
• Cleaner separation of concerns
• Better maintainability and reusability
• Props-based configuration (isLoading, isBookLoaded, zoomLevel)

3. Permissions Cleanup

• Removed Unused Components: Cleaned up unused Vue components
• Deleted AppFooter.vue, AppHeader.vue, ErrorBoundary.vue
• Removed NotificationToast.vue, ThemeSwitch.vue
• Removed unused help.vue and privacy-policy.vue pages
• Optimized Permissions: Reduced extension permissions to only what's actively used
• Follows Chrome's best practices for minimal permission requests
• Improved security posture

4. Side Panel Enhancements

• Updated Side Panel UI: Improved layout and styling of the library management interface
• Better Integration: Enhanced consistency with the main reader interface

this version fixes:
- ePub download failures by making the extension to allow epub downloads

It adds:

New Features

1. Mobile Enhancements

• Backdrop Overlay: Semi-transparent backdrop when sidebar is open on mobile
• Auto-close Sidebar: Sidebar automatically closes after navigation on mobile devices
• Touch Gestures: Swipe left/right to navigate between pages
• Responsive Sidebar: Sidebar width adjusts based on screen size
• Firefox built-in consent for data collection and transmission

2. Better Resource Management

• Window Resize Handler: EPUB rendition properly resizes when viewport changes
• Proper Cleanup: Book resources are destroyed on component unmount to prevent memory leaks
• Event Listener Management: All event listeners properly added and removed with correct options
• Reader Progress: Users can now track how many percent of the doc they have read