refactor: don't provide the user to the ssh command

- proxy command is configured with the user

Author: fioan89

src/main/kotlin/com/coder/toolbox/views/EnvironmentView.kt

@@ -36,7 +36,7 @@ class EnvironmentView(
         /**
          * The username is ignored by the Coder proxy command.
          */
-        override val userName: String? = "coder"
+        override val userName: String? = null
 
     }