Launcher Auth (#450)

* Launcher Auth

* Finish auth

* final fixes

theseus/src/state/auth_task.rs

@@ -6,7 +6,10 @@ use tokio::task::JoinHandle;
 // A wrapper over the authentication task that allows it to be called from the frontend
 // without caching the task handle in the frontend
 
-pub struct AuthTask(Option<JoinHandle<crate::Result<Credentials>>>);
+pub struct AuthTask(
+    #[allow(clippy::type_complexity)]
+    Option<JoinHandle<crate::Result<(Credentials, Option<String>)>>>,
+);
 
 impl AuthTask {
     pub fn new() -> AuthTask {
@@ -37,7 +40,8 @@ impl AuthTask {
         Ok(url)
     }
 
-    pub async fn await_auth_completion() -> crate::Result<Credentials> {
+    pub async fn await_auth_completion(
+    ) -> crate::Result<(Credentials, Option<String>)> {
         // Gets the task handle from the state, replacing with None
         let task = {
             let state = crate::State::get().await?;