Smaller Parquet row groups, so the dataset viewer can load them (same rows)

decomposition/train-00000-of-00001.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:5d9a1e1948be5fa11776ea87f2bba28e05f5ab1ad98e433d7df3f962014b0f71
-size 125024199
+oid sha256:21f8f3f4b5a5e981a0b1805b736f3a4348b73446a85e941ea65ebcefeebee597
+size 129758274

subtask_states/train-00000-of-00001.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:b5829c3873ae4d3d400bd350847f28cf9a805c5835bd5a6bbb083d9ac85dce35
-size 197317911
+oid sha256:8dafbf23c982c352d16a295a8b9e8d7b7c68aef22e80e43f471f3a74f63ec118
+size 197486088