DM-5278 metrics page refactor

[PhilipDeFraties]

JIRA issue link

https://agile6.atlassian.net/browse/DM-5278

Description - what does this code do?

Refactors /innovations/{innovation slug name}/edit/metrics endpoint to unblock the "all time" page from timing out on deployed apps.

Simplifies and reduces queries, moves some logic to models as scopes

Testing done - how did you test it/steps on how can another person can test it

1. Locally, before checking out to this branch, go to the metrics page for a few innovations, take screenshots of the data for both "the last 30 days" and "all time" for each section.
2. Check out to this branch, be sure to reset local server, repeat step 1 and verify the data shown is the same for each innovation.

Screenshots, Gifs, Videos from application (if applicable)

Link to mock-ups/mock ups (image file if you have it) (if applicable)

Acceptance criteria

• [ ]

Definition of done

• Unit tests written (if applicable)
• e2e/accessibility tests written (if applicable)
• Events are logged appropriately
• Documentation has been updated, if applicable
• A link has been provided to the originating JIRA issue
• No sensitive information (i.e. PII/credentials/internal URLs/etc.) is captured in logging, hardcoded, or specs