snake-game link to live preview steps

• Create grid done
• Create food some where in grid done
• Create snake done
• Make snake move done
• Make snake grow after eating food done
• After eating make food appear on new cell done
• End game if snake touches edges or it self done
• Count score done
• Store high score in local storage done
• Timer to to show done
• Button to reset the game done
• Custom grid length Todo
• Refactor Todo