fix: Fix register modal button click handling and add mask state

Author: TigerInYourDream

src/register/register_screen.rs

@@ -350,7 +350,7 @@ live_design! {
                         text: "Back to Login"
                     }
                 }
-                
+
                 // Modal for registration status (both password and SSO)
                 status_modal = <Modal> {
                     content: {
@@ -399,7 +399,7 @@ impl RegisterScreen {
         self.update_button_mask(&register_button, cx, 0.0);
         self.redraw(cx);
     }
-    
+
     fn update_registration_mode(&mut self, cx: &mut Cx) {
         let is_matrix_org = self.selected_homeserver == "matrix.org" || self.selected_homeserver.is_empty();
 
@@ -449,13 +449,13 @@ impl MatchEvent for RegisterScreen {
         if edit_button.clicked(actions) {
             self.toggle_homeserver_options(cx);
         }
-        
+
         // Handle SSO button click for matrix.org
         if sso_button.clicked(actions) && !self.sso_pending {
             // Mark SSO as pending for this screen
             self.sso_pending = true;
             self.update_button_mask(&sso_button, cx, 1.0);
-            
+
             // Use the same SSO flow as login screen - spawn SSO server with Google provider
             // This follows Element's implementation where SSO login and registration share the same OAuth flow
             // The Matrix server will handle whether to create a new account or login existing user
@@ -583,7 +583,7 @@ impl MatchEvent for RegisterScreen {
                     self.update_button_mask(&sso_button, cx, 0.0);
                 }
             }
-            
+
             // Handle SSO login actions
             match action.downcast_ref::<LoginAction>() {
                 Some(LoginAction::SsoPending(pending)) => {

src/sliding_sync.rs

@@ -626,7 +626,7 @@ async fn async_worker(
                             enqueue_popup_notification(PopupItem {
                                 message: error_msg.clone(),
                                 kind: PopupKind::Error,
-                                auto_dismissal_duration: Some(5.0),
+                                auto_dismissal_duration: None,
                             });
                             Cx::post_action(RegisterAction::RegistrationFailure(error_msg));
                         }