Timer - Configurable Timerv1.1

What changed

• New featureAdded an option to keep the screen on while the timer is running
• UXUpdated the user interface for the Quick Timer feature
• MonetizationTransitioned the app to a free-to-download model supported by in-app purchases

Original release notes

- Added Option to keep screen on when timer is running.
- Changed Quick Timer UI.
- Making app free with in-app purchase.