chore: refactor struct in topos-core

[Freyskeyd]

Description

Update some structs after the merge of topos-core, topos-uci and topos-api.

Breaking changes

BREAKING CHANGE: This break the 0.0.10 GraphQL API definition due to the rename of some fields.

PR Checklist:

• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added or updated tests that comprehensively prove my change is effective or that my feature works

[codecov]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (355b08a) 0.00% compared to head (61f22de) 68.37%.

Files	Patch %	Lines
crates/topos-core/src/api/graphql/certificate.rs	66.66%	2 Missing ⚠️
crates/topos-tce-api/src/graphql/query.rs	71.42%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##           main     #437       +/-   ##
=========================================
+ Coverage      0   68.37%   +68.37%     
=========================================
  Files         0      224      +224     
  Lines         0    13106    +13106     
=========================================
+ Hits          0     8961     +8961     
- Misses        0     4145     +4145     

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