Narrow type for logos array using as const

[thebaba44]

Obstacle encountered

The logos type is wide. There's no autocomplete in exercise "Art directed Grid - 02 Grid Class Composition"

The exercise comment suggests that the record type will perform type checking to catch incorrect row / column entries

/*
  🦺 The two TypeScript 'Records' below ensure that the lookup objects 
  have keys that match the possible values of the 'column' and 'row'
  properties on the 'logos' array.
*/

Solution

This PR appends as const to the logos array in all exercises to narrow the logos type, providing object fields auto complete and warn users if they provided an incorrect row / column number