Homework assignment v1.1.x => v1.2.x; Preps to v1.3.x

[OleksiyRudenko]

Complete the items below

P0 - must have
P1 - nice to have; put aside for a while when any task of a higher priority arrives (e.g. next homework in the course)
P2 - you will really ramp your skills up if you do; put aside when any task of a higher priority arrives (e.g. next homework in the course)

v1.1.x => v1.2

• P0: split your code base into modules (components, data/API, framework)
• P0: migrate to JSX
• P1: make your app looking nice with a touch of visual design / css-styling