How to use

1. Go to your Simple Tab Groups settings and save a backup file (Settings>Backup your Simple Tab Groups>Create backup)
2. Disable/remove the addon
3. Install Sidebery
4. Go to Sidebery's settings and save a snapshot (Settings>Snapshots viewer>Create snapshot)
5. Save the Python file in this repository (convert_stg_to_sidebery.py)
6. Edit lines 4 and 5 with the full paths to your Simple Tab Groups backup and Sidebery snapshot
7. Run it with python3 convert_stg_to_sidebery.py - output saved to wherever you ran the Python file
8. Import the generated sidebery-output.json in Sidebery (Settings>Snapshots viewer>Import snapshot)
9. Once loaded, click on the imported snapshot in the list and then click Open window on the right
10. A new window opens with all your tabs sorted again - this may take 20 seconds or so with e.g. 500+ tabs
11. Close the old unsorted window
12. You may want to turn on "Hide native tabs of inactive panels" to get the same experience as Simple Tab Groups