message: Increase segment granularity.
  I'm not sure if we need it at all, but playing safe, increasing it 2x.
  This results in comparable snapshots (and ability to enable snapshot automation).
  In my testing, that changed 5 segments across ~ 20 files & hundreds of snapshots (per file).
diff: @@ -1205,7 +1205,7 @@ export type LocalReferenceMapper = (id: string) => LocalReference;
  // represents a sequence of text segments
  export class MergeTree {
  // must be an even number
  - static TextSegmentGranularity = 128;
  + static TextSegmentGranularity = 256;
  static zamboniSegmentsMaxCount = 2;
  static options = {
  incrementalUpdate: true,
  