Avoid NullPointerException in LoginActivity

[xurxodev]

:pushpin: References

• Issue: https://app.clickup.com/t/32q8rn7 https://app.clickup.com/t/32q8khc

:gear: branches

app: Origin: fix/avoid_null_pointer_exception_dashboard_activity Target: v1.6_hnqis bugshaker-android: Origin: development_android_x
EyeSeeTea-SDK: Origin: feature/development SDK: Origin: feature-2.30_upgrade_gradle

:tophat: What is the goal?

Fix crash Fatal Exception: java.lang.RuntimeException: An error occurred while executing doInBackground()

:memo: How is it being implemented?

I have not reproduced the bug because it's weird at this point that the logged user is null but I've added a null validation

• [x] Avoid BadTokenException
• [x] Avoid NullPointerException

:boom: How can it be tested?

:floppy_disk: Requires DB migration?

• [X] Nope, we can just merge this branch.
• [ ] Yes, but we need to apply it before merging this branch.
• [ ] Yes, it's already applied.

:art: UI changes?

• [x] Nope, the UI remains as beautiful as it was before!
• [ ] Yeap, here you have some screenshots