Inconsistent Dna Properties type

[mattyg]

The DNA Properties type specified in the integrity zomes is

pub struct Properties {
    pub created: Timestamp,
    pub privacy: Privacy,
    pub progenitor: AgentPubKey,
}

But when the UI is cloning cells, it uses the following properties type:

interface Properties {
    created: Timestamp,
    privacy: Privacy,
    progenitor: AgentPubKeyB64
}

It's not clear to me if serde serialization is handling converting AgentPubKeyB64 -> AgentPubKey, and thus there is no issue other than confusion in the codebase, OR if it is not doing this conversion and thus some integrity rules are not being applied as expected, which will require a breaking change to fix.