Quality of life improvements, bug fixes

- Option to reorder bookmarks and categories on the settings page
- Completely new icons for the whole extension
- Option to use stripped rows on list view for better readability
- Moved notifications to center of screen so it's easier to use the extension - especially when adding multiple categories/bookmarks
- and bug fixes...

- Re-add overwriting homepage view with Simple Start

Some behind the scenes changes to support Manifest v3 and other browsers with the same code.

Fixed: switched to new service to provide better and faster favicons for websites
Fixed: changed how urls for bookmarks are passed to the favicon service so more websites can have correct icons shown

- Improve clickable area of the select category input