Improve get moves logic

[shimphillip]

Acceptance Criteria

Notes: Currently, there is only one button that randomly retrieves a move. Instead, let's create 2 buttons on the sides (1 on the left and the other on the right) that the user can click to move around.

• The moves should be sorted by levels -> machines -> tutors
• It would be also cool to display the total number of moves and show the user index.