Refactor implementation for loading data on repositories to improve performance

[ellykits]

IMPORTANT: Where possible all PRs must be linked to a Github issue

Fixes #3608 #3495

Engineer Checklist

• I have written Unit tests for any new feature(s) and edge cases for bug fixes
• I have added any strings visible on UI components to the strings.xml file
• I have updated the CHANGELOG.md file for any notable changes to the codebase
• I have run ./gradlew spotlessApply and ./gradlew spotlessCheck to check my code follows the project's style guide
• I have built and run the FHIRCore app to verify my change fixes the issue and/or does not break the app
• I have checked that this PR does NOT introduce breaking changes that require an update to Content and/or Configs? If it does add a sample here or a link to exactly what changes need to be made to the content.

Code Reviewer Checklist

• I have verified Unit tests have been written for any new feature(s) and edge cases
• I have verified any strings visible on UI components are in the strings.xml file
• I have verifed the CHANGELOG.md file has any notable changes to the codebase
• I have verified the solution has been implemented in a configurable and generic way for reuseable components
• I have built and run the FHIRCore app to verify the change fixes the issue and/or does not break the app

[codecov]

Codecov Report

Attention: Patch coverage is 65.89595% with 177 lines in your changes missing coverage. Please review.

Project coverage is 28.1%. Comparing base (996914e) to head (4345469).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...er/fhircore/engine/data/local/DefaultRepository.kt	68.0%	91 Missing and 24 partials ⚠️
...e/engine/data/local/register/RegisterRepository.kt	56.9%	30 Missing and 4 partials ⚠️
...gister/fhircore/engine/rulesengine/RulesFactory.kt	22.7%	16 Missing and 1 partial ⚠️
...core/engine/util/extension/ApplicationExtension.kt	77.7%	3 Missing and 1 partial ⚠️
...rcore/engine/util/extension/FhirEngineExtension.kt	78.5%	1 Missing and 2 partials ⚠️
.../engine/configuration/migration/MigrationConfig.kt	0.0%	1 Missing ⚠️
...er/fhircore/engine/domain/repository/Repository.kt	0.0%	1 Missing ⚠️
...fhircore/engine/rulesengine/ConfigRulesExecutor.kt	90.9%	1 Missing ⚠️
...rtregister/fhircore/engine/sync/SyncBroadcaster.kt	0.0%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##              main   #3634     +/-   ##
=========================================
+ Coverage     27.4%   28.1%   +0.6%     
- Complexity     789     798      +9     
=========================================
  Files          282     282             
  Lines        14695   14510    -185     
  Branches      2632    2589     -43     
=========================================
+ Hits          4040    4082     +42     
+ Misses       10100    9889    -211     
+ Partials       555     539     -16     

Flag	Coverage Δ
engine	64.2% <65.8%> (+0.5%)	⬆️
geowidget	16.0% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...ister/fhircore/engine/domain/model/ActionConfig.kt	79.5% <100.0%> (ø)
...core/engine/domain/model/RepositoryResourceData.kt	100.0% <ø> (ø)
...ister/fhircore/engine/rulesengine/RulesExecutor.kt	85.1% <100.0%> (ø)
...ister/fhircore/engine/rulesengine/RulesListener.kt	84.2% <ø> (-1.3%)	⬇️
...tregister/fhircore/engine/task/FhirResourceUtil.kt	82.9% <100.0%> (ø)
...hircore/engine/util/extension/ResourceExtension.kt	67.8% <ø> (ø)
...g/smartregister/fhircore/quest/QuestApplication.kt	0.0% <ø> (ø)
...smartregister/fhircore/quest/data/DataMigration.kt	9.3% <ø> (+0.8%)	⬆️
...ircore/quest/data/register/RegisterPagingSource.kt	0.0% <ø> (ø)
...t/data/register/model/RegisterPagingSourceState.kt	80.0% <ø> (ø)
... and 21 more

... and 3 files with indirect coverage changes