cleanup dummy data

[sainak]

Proposed Changes

• load dummy states, districts, local_body and wards from static data
• remove redundant fixtures
• remove unnecessary fixtures from facility.json
• update load_dummy_data command

Associated Issue

• fixes Issue with dummy data / fixtures #1756

Merge Checklist

• Tests added/fixed
• Update docs in /docs
• Linting Complete
• Any other necessary step

Only PR's with test cases included and passing lint and test pipelines will be reviewed

@coronasafe/care-backend-maintainers @coronasafe/care-backend-admins

[codecov]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (0869c46) 61.02% compared to head (560b3bd) 61.03%.

Files	Patch %	Lines
...re/facility/management/commands/load_dummy_data.py	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1758      +/-   ##
==========================================
+ Coverage   61.02%   61.03%   +0.01%     
==========================================
  Files         211      211              
  Lines       11589    11587       -2     
  Branches     1659     1659              
==========================================
  Hits         7072     7072              
+ Misses       4264     4262       -2     
  Partials      253      253              

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