feat: SRS-361 Implement editing of Parcel Descriptions

[bolny]

Description

This is the first of what I imagine will be two PRs to finalize Parcel Description edit mode. The next PR will implement Adding and Deleting.

This PR allows the user to change and save existing parcel description objects.

Fixes # SRS-361 Partially

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)

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

• Manual testing. I have edited and saved every field to the database.
• All specs are passing.

Checklist

• I have read the CONTRIBUTING doc
• 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
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have already been accepted and merged

Further comments

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[anton-bcgov]

Full transparency: I don't know much about parcel descriptions, so I'll leave the more detailed review to someone with that knowledge :D

Leaving one css-related comment though

[jaspalsingh-aot]

seems fine to me