Consolidate episodes into a single data file and fix indexing

data/chunk-000/file-000.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:642e993817fd73b09ed7569f574be9c4073fc7ff82c8ce34d33264f71177130e
-size 2625939
+oid sha256:4c74dc47dd06f33105116031d9024abaa1080847dbff99629be01a2d6367e441
+size 2622109

data/chunk-000/file-001.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:d280779cd4f72aa8fcb8ec42dd9c272d8854a43715a4363cb267e8f21cf050bf
-size 926089

data/chunk-000/file-002.parquet

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:90024478446994bc90826d6b173104e2d9a7c135573a833a246c54d694e577d3
-size 729640

meta/episodes/chunk-000/file-000.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:5b42a3888d9ec2a57c244e230b5a9a0977aaff2c79c2db8a51d56042bbf811d1
-size 79597
+oid sha256:96acb6fdda23b08b1ee91ab2d54a6f0916ff53756830ab4e4dea908d2962ff74
+size 79575

meta/info.json

@@ -1,16 +1,6 @@
 {
     "codebase_version": "v3.0",
-    "robot_type": "aloha",
-    "total_episodes": 50,
-    "total_frames": 20000,
-    "total_tasks": 1,
-    "chunks_size": 1000,
     "fps": 50,
-    "splits": {
-        "train": "0:50"
-    },
-    "data_path": "data/chunk-{chunk_index:03d}/file-{file_index:03d}.parquet",
-    "video_path": "videos/{video_key}/chunk-{chunk_index:03d}/file-{file_index:03d}.mp4",
     "features": {
         "observation.images.top": {
             "dtype": "video",
@@ -131,6 +121,16 @@
             "fps": 50
         }
     },
+    "total_episodes": 50,
+    "total_frames": 20000,
+    "total_tasks": 1,
+    "chunks_size": 1000,
     "data_files_size_in_mb": 100,
-    "video_files_size_in_mb": 500
+    "video_files_size_in_mb": 500,
+    "data_path": "data/chunk-{chunk_index:03d}/file-{file_index:03d}.parquet",
+    "video_path": "videos/{video_key}/chunk-{chunk_index:03d}/file-{file_index:03d}.mp4",
+    "robot_type": "aloha",
+    "splits": {
+        "train": "0:50"
+    }
 }