Refactored notes service for improved structure and asynchronicity

[codecov[bot]]

Codecov Report

Attention: 83 lines in your changes are missing coverage. Please review.

Comparison is base (1125eab) 68.24% compared to head (ab23273) 68.40%. Report is 1 commits behind head on project-orion.

Files	Patch %	Lines
app/controllers/notes-controller.js	49.47%	48 Missing :warning:
app/services/notes-service.js	45.45%	18 Missing :warning:
app/repository/notes-repository.js	77.33%	17 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## project-orion #316 +/- ## ================================================= + Coverage 68.24% 68.40% +0.16% ================================================= Files 146 146 Lines 15737 15488 -249 Branches 1887 1837 -50 ================================================= - Hits 10740 10595 -145 + Misses 4989 4885 -104 Partials 8 8 ```

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[sonarcloud[bot]]

SonarCloud Quality Gate failed.   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
38.0% Duplication

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[ElJocko]

closes #296

[sonarcloud[bot]]

Quality Gate failed

Failed conditions

39.6% Duplication on New Code (required ≤ 3%)

See analysis details on SonarCloud