Break Helper 1.6.3

• Refactored extension logic into modules;
• Removed statistics;
• Fixed work/break notification sounds;
• Change badge color to blue for better readability;
• Added notifications denoting when break starts and ends.

Break Helper 1.6.1

• Fixed notification error due to float values of progress bar.

Break Helper 1.6

• Added "Go on a break" and "Skip this break" buttons;
• Added progress bar and countdown timer to break notification;
• Fixed playing break notification sound when it's time for a break.