Refactor searchindex translation layer

[josvazg]

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[josvazg]

The refactor has messed up the unit tests due to the initialisation of the service. I need to figure out a way to do teh initialisation that works for production and test and is acceptably neat.

[github-actions[bot]]

https://app.codecov.io/github/mongodb/mongodb-atlas-kubernetes/commit/1b60a9ef375e6e4efb9d450dd108cda72a427524

[josvazg]

I'd only move mocks to internal/mocks/translation 🙈 . I'd also think about use mockery instead of manually add these mocks, the same way is done for the SDK

Lets make a final decision, I volunteer to make the refactors whatever the decision is finally.