message: fix calculated label_seq_id
diff: @@ -74,7 +74,7 @@ function createHierarchyData(atom_site: AtomSite, sourceIndex: Column<number>, o
  let cI = 0;
  let seqId = 0;
  for (let i = 0, il = seqIds.length; i < il; ++i) {
  - if (residueOffsets[i] > chainOffsets[cI + 1]) {
  + if (residueOffsets[i] >= chainOffsets[cI + 1]) {
  cI += 1;
  seqId = 0;
  }
  