Refactor of page descriptions api

[klau1011]

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Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Change 1
Change 2

Type of change

Please delete options that are not relevant.

• Hotfix (needs to be merged into main branch ASAP)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Checked "/example" endpoint on postman
• Change passes all integration tests

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation/READ-ME/UMLS (if applicable)
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works