District Filter to display State's name along with the district's name

[GokulramGHV]

Proposed Changes

• Added state name to DistrictSerializer's to_representation method

Associated Issue

• District Filter in the user advance filter need to be modified care_fe#6634

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

[sainak]

@nihal467 @GokulramGHV, can you check if this isnt affecting other district fields?

[GokulramGHV]

@sainak I've checked the frontend and I've not found any instance where district name is used directly instead of district id.
Afaik, i don't think it's affecting the other fields

[sainak]

@GokulramGHV can you check why the test is failing?

[vigneshhari]

This might create a ton of N+1 queries if the query does not select the state as well.

[vigneshhari]

This MR is going to be closed, if this feature is required, the state has to be serialized as a separate field.