Refactor caching and subscriptions for evaluations

[HenningCash]

📢 Type of change

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

📜 Description

I hope this will fix all remaining issues with client-side cached evaluations.

• Invalidate cached latest evaluation after starting evaluation
• Use subscribeToMore of query results instead of standalone subscriptions + useEffect where possible
• Dropped initial data from useLatestEvaluation hook. This was used for the Submission Table. Instead the submission table now only subscribes for evaluation updates.

☑️ Checklist:

• I have performed a self-review of my own code
• I have run the auto code formatting scripts
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I updated the CHANGELOG.md
• I have added tests that prove my fix is effective or that my feature works

[HenningCash]

Need to add unsubscribe

[HenningCash]

nvm. unsubscribe of subscribeToMore is correctly handled by Apollo