Introduces a full browser customization system with support for theme presets, live editing, import/export, and non-destructive design. Adds new documentation for customization, updates the features list, and implements a ThemeManager for loading and managing themes at the application level. Updates home and settings pages to support live theming and preview, and adds four built-in themes (default, forest, ocean, sunset).
Introduced a search engine selector dropdown in the search bar, allowing users to choose between Google, Bing, and DuckDuckGo. Updated the search logic to use the selected engine and added corresponding SVG icons. Adjusted CSS and HTML structure to accommodate the new selector.
Updated the add bookmark popup with a more modern Material card style, clearer field labels, and improved layout. The icon picker now fetches the full list of Material Icons asynchronously from Google Fonts, with a fallback to a minimal static set for immediate use. Enhanced the icon grid UI and selection logic for better usability.
andrew