Configuration implementation + new keyboard shortcuts 🎹

• Introducing a new .ini based configuration
  • Thanks @gmelodie for implementing configuration support. 🎉
  • This allows customising work time and break times. ☕
  • Refer wiki for what you can do!
• New shortcuts to start s, pause p, reset r, reset-all a was introduced. 😀🎹

If I missed to mention anyone here please let me know and I'll update this. 🙇‍♂️