Improved singleplayer error handling

Former-commit-id: 0e33493bbb588ab0cd5278ec92b5859712446f4b

voxygen/src/menu/main/mod.rs

@@ -78,6 +78,7 @@ impl PlayState for MainMenuState {
                         match err {
                             InitError::BadAddress(_) | InitError::NoAddress => "Server not found",
                             InitError::ConnectionFailed(_) => "Connection failed",
+                            InitError::ClientCrashed => "Client crashed",
                         }
                         .to_string(),
                     );