- Optimizes ViewInBrowser class
- Optimizes and updates shortcode link category to use the refactored
getViewInBrowserUrl() method
- Updates Shortcodes to use the refactored getViewInBrowserUrl() method
- Fixes newsletter URL generation in archive shortcode
- Disables generation of subscription management/unsubscribe/view in
browser shortcodes when newsletter is previewed
- Extracts common tracking data processing/validation code into the Track
class
- Refactors Clicks, Opens and View in Browser classes to enforce
subscriber id and token check
- Allows admin users to preview newsletters without tracking statistics