Enhance FM synthesis + cleaning code architecture

src/utils/index.ts

@@ -0,0 +1,8 @@
+export { generateTileGrid, generateRandomFormula } from './bytebeatFormulas'
+export { generateFMTileGrid, generateRandomFMPatch, createFMTileState, parseFMPatch } from './fmPatches'
+export { createTileState, createTileStateFromCurrent, loadTileParams, saveTileParams, cloneTileState, randomizeTileParams } from './tileState'
+export { getTileId, getTileFromGrid, isCustomTileFocused, isTileFocused } from './tileHelpers'
+export { generateWaveformData, drawWaveform } from './waveformGenerator'
+export { generateFMWaveformData } from './fmWaveformGenerator'
+export { getComplexityLabel, getBitDepthLabel, getSampleRateLabel, getAlgorithmLabel } from './formatters'
+export type { FocusedTile } from './tileHelpers'