updated README and a bunch of other stuff

parts/auth.client/src/lib.rs

@@ -202,6 +202,18 @@ pub extern "C" fn part_auth_client() -> MizeResult<()> {
     Ok(ItemData::new())
   });
 
+  method("get_id_token", "() -> String", |_args| {
+    let data = get_config("self.secrets")?;
+    let secrets = match data.deserialize::<Option<ClientSecrets>>() {
+      Ok(Some(secrets)) => secrets,
+      Ok(None) | Err(_) => {
+        let mut mize = get_global_mize()?;
+        load_secrets(&mut mize).map_err(|_| mize_err!("not logged in"))?
+      }
+    };
+    Ok(secrets.id_token.into_item_data())
+  });
+
   let mut mize = get_global_mize()?;
   
   // start refresh tread if configured