[ECUK/EU][In-App 3DS] Add logging and instrumentation

[rafecolton]

Add logging and instrumentation, including:

• Expensify logs
• Sentry logs
• Sentry benchmarking / performance checks
• Stats counters (e.g. on successes, failures, various response screens)
• Ensure flows work with full story

• [NO QA] Adds logging to MFA flow #84058

Issue Owner

Current Issue Owner: @dariusz-biela

[rafecolton]

Updated the OP to link to the draft PR

[rafecolton]

FYI @dariusz-biela in case it's relevant, we're discussing a new design doc section that includes some guidelines around this

The link goes here: https://github.com/Expensify/App/blob/03d5076241feda81307318873146f53e8a509370/contributingGuides/OBSERVABILITY.md

[rafecolton]

bump @dariusz-biela is there any more to do here?