Introduced preferences section for extension for changing configuring extensions behaviour.
- Notification can be disabled and enabled from Preferences section.

Support for Enable/Disable Redirection on toolbar

- The extension icon is now made visible on the toolbar
- clicking on it would toggle the extension to enable/disable.
- introduced new set of icons for disable state as well

1. Introduced logo for the addon.
2. Notification on each diversion as an informed action.