Clean up django migrations before 0.1.4 release

[pavish]

Description

The current django migration scripts in develop are messy:

- 0001_initial.py
- 0002_datafile_type.py
- 0003_datafile_max_level.py
- 0004_shares.py
- 0005_datafile_sheet_name.py
- 0005_user_display_language.py
- 0006_auto_20230906_0413.py
- 0007_auto_20230913_1912.py
- 0008_auto_20230921_1834.py
- 0009_merge_20231025_1733.py

Many of them are not descriptive, there's 2 with the same number (0005) and one script (0009) to make sure the second one is included. We ought to clean this up.

The previous release 0.1.3 went with 0004_shares.py. Migrations after that needs to be merged and simplified before the next release 0.1.4.

Additional context

• Matrix conversation on the Backend channel

Status

• Blocked on merging of Updated oid and column_order fields to only allow positive integers #3177 (because that PR introduces migrations)