Find or create user

[josefinalliende]

Context

If a user is not found, we should create it

Solution

Change the get_user method from the bridge to user find or create

[josefinalliende]

Needs small change in rust crate, cause User::find_or_create_by_pubkey is not available for the flutter repo yet like to add it to the bridge

[josefinalliende]

Currently working in the rust side: parres-hq/whitenoise#336

[erskingardner]

Is this closed now that you merged that PR? or does it need other stuff still?

[josefinalliende]

Is this closed now that you merged that PR? or does it need other stuff still?

Now I opened the flutter side (it needed a PR in rust and one un flutter to update the method that was used there)

[josefinalliende]

#555