Avatar image is not compressed in onboarding

[llunaCreixent]

Describe the bug
In the onboarding process I couldn't upload an image and an error was reported. However after validation my account I was able to upload the same image when editing my profile.

To Reproduce
Steps to reproduce the behavior:

1. Sign up in circles.garden
2. Try to upload an big image from your fallery
3. See error
4. Click "i'll do it later"
5. Get three trusts
6. Deploy account
7. Go to edit profile
8. Select the same image from the gallery
9. No error

Expected behavior
I expected the app compresses my image in the onboarding process

[louilinn]

This is because the Onboarding.js uses component AvatarUploader.js and EditProfile.js does not. We have duplicated functionality. When EditProfile was implemented, the AvatarUploader component was not used / updated.

The functionality in EditProfile.js (uploadPhoto function) should be moved to Avatar Uploader to replace the approach there.
AvatarUploader should then be used in both Onboarding.js and EditProfile.js