feat(RemoteActor): add bio, banner_url, followers_url, following_url, also_known_as fields

Bump to 0.3.1. These fields are available on DbActor at follow/ingest
time but were discarded when constructing RemoteActor. Now populated
in from_json and follow(), so consuming repos can store and return
rich actor profiles without extra queries.

src/repository/mod.rs

@@ -30,6 +30,11 @@ pub struct RemoteActor {
     pub display_name: Option<String>,
     pub avatar_url: Option<String>,
     pub outbox_url: Option<String>,
+    pub bio: Option<String>,
+    pub banner_url: Option<String>,
+    pub followers_url: Option<String>,
+    pub following_url: Option<String>,
+    pub also_known_as: Vec<String>,
 }
 
 #[derive(Debug, Clone)]