Add typing of codes used by components
dtinth
| Files | Coverage |
|---|---|
| SongOfTheDay.ts | 31.25% |
| filterSongs.js | 50.00% |
| getPlayableCharts.ts | 75.00% |
| groupSongsIntoCategories.ts | 75.00% |
| index.spec.ts | 100.00% |
| index.ts | 35.71% |
| isChartPlayable.js | 100.00% |
| preprocessCollection.ts | 8.33% |
| sortSongs.ts | 71.43% |
| Folder Totals (9 files) | 53.85% |
| Project Totals (178 files) | 86.40% |