refactor(infra): record legacy data to improve testing stability (#4590)

tests/fixtures/legacy/0.8.4/local-storage.json

@@ -0,0 +1,7 @@
+{
+  "jotai-workspaces": "[{\"id\":\"hsraMjtX5k\",\"flavour\":\"local\",\"version\":3}]",
+  "last_page_id": "Ra-VT4A8dt",
+  "last_workspace_id": "hsraMjtX5k",
+  "affine-local-workspace": "[\"hsraMjtX5k\"]",
+  "is-first-open": "false"
+}