Refactor and improve trainee dashboard

[aimedivin]

PR Description

This PR focuses on refactoring and improving the queries used on trainee dashboard

Description of tasks that were expected to be completed

• added createdAt field to get rating for trainee in definition for the query
• added logic to get average attendance calculation for a trainee
• Ensured my changes work well doesn't affect other existing

Functionality

How does this works, add some information that maybe needed in testing

How has this been tested?

  git clone https://github.com/atlp-rwanda/atlp-pulse-bn.git
  cd atlp-pulse-bn
  git checkout fix-trainee-dashboard
  npm i

• Ensure that you have set your .env file using .env.example.
  • For the app

  npm run dev
  

  The functionality was tested using Apollo Sandbox

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 5.00000% with 76 lines in your changes missing coverage. Please review.

Please upload report for BASE (develop@6fd2a27). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
src/resolvers/attendance.resolvers.ts	3.38%	57 Missing ⚠️
src/resolvers/ratingsResolvers.ts	11.76%	15 Missing ⚠️
src/resolvers/userResolver.ts	0.00%	3 Missing ⚠️
src/resolvers/2fa.resolvers.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             develop     #438   +/-   ##
==========================================
  Coverage           ?   16.60%           
==========================================
  Files              ?      101           
  Lines              ?     3891           
  Branches           ?     1097           
==========================================
  Hits               ?      646           
  Misses             ?     3234           
  Partials           ?       11           

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