fix(backend): api return of aquifer notes

[lunamoonmoon]

Description

Fixed api returning aquifer notes (internal comments) to all users.

Fixes #126

Type of change

• [x] Bug fix (non-breaking change which fixes an issue)

Checklist

• [x] I have read the CONTRIBUTING doc
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] New and existing unit tests pass locally with my changes
• [x] Any dependent changes have already been accepted and merged

Further comments

notes field not returned if userRole !== aquifers.view

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