feat: Report App Memory Usage

[kevinrenskers]

📜 Description

Just like we're reporting free memory (see #1962), we are now reporting app memory usage.

💡 Motivation and Context

Closes #999

💚 How did you test it?

Unit tests, manual test.

📝 Checklist

• I reviewed the submitted code
• I added tests to verify the changes
• I updated the docs if needed
• Review from the native team if needed
• No breaking changes

🔮 Next steps

[kevinrenskers]

I'm not sure why "Free Memory" is shown as a human readable value, but "App Memory" is shown as a raw value. Is there a magic key I should use rather than app_memory? Looking at https://develop.sentry.dev/sdk/event-payloads/contexts/#device-context I don't see anything.

Should we translate this client-side? That seems a bit weird. So I guess we need to create a ticket for the backend/ui team to format this value?

[github-actions]

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📖	Do not forget to update Sentry-docs with your feature once the pull request gets approved.

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[brustolin]

Instead of device context, we should store this information in the app context.

[kevinrenskers]

Done

[bruno-garcia]

So I guess we need to create a ticket for the backend/ui team to format this value?

Was there a follow up on this?

This was done here: getsentry/sentry#20909

[bruno-garcia]

Could be worth writing on the develop docs how to format data so that it's presented like that. Or where/how to change Sentry to do so (e.g: link to this PR?)

[kevinrenskers]

Dhiogo said "we are solving the memory format server side".