Allows diagnoses starting with disease code to be available in ICD11 Search

[rithviknishad]

Proposed Changes

• Allows diagnoses starting with disease code to be available in ICD11 searched regardless of whether it's a chapter/category/leaf entity or not

Associated Issue

• Resolves partially: Support for adding description to ICD-11's search care_fe#6995
• Resolves Allow diagnoses starting with disease code to be picked (even if it's a chapter or a category, regardless of whether it's a leaf entity or not) care_fe#7042

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 (91ed61a) 61.25% compared to head (59444cd) 61.34%.

Files	Patch %	Lines
care/abdm/utils/fhir.py	0.00%	1 Missing ⚠️
care/facility/models/patient.py	0.00%	1 Missing ⚠️
care/hcx/api/viewsets/gateway.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1823      +/-   ##
==========================================
+ Coverage   61.25%   61.34%   +0.08%     
==========================================
  Files         208      208              
  Lines       11530    11532       +2     
  Branches     1647     1647              
==========================================
+ Hits         7063     7074      +11     
+ Misses       4199     4184      -15     
- Partials      268      274       +6     

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[vigneshhari]

Fix tests and we should be good to merge

[rithviknishad]

@vigneshhari the issue was when running the tests, the in-memory table was being built before the DB was populated with the ICD11 data. Hence 0 records were loaded onto the in-memory table.

It was not being lazy loaded accidentally due to other functions in the same file being imported from other places. I've now ensured that ICD11 is always lazy-loaded.