fix: handle auth and server error during swap (#593)

* fix: change execution order for light node upgrade

* refactor: grab new configuration from post config request

* fix: only print successful light node upgrade when it really happens

* fix: log full desktop side swap error (#596)

* refactor: try to make the auth error in swap nicer

* refactor: make error instruction consistent

* fix: avoid overwriting daiToSwap when it is set manually

src/utils/AuthError.ts

@@ -0,0 +1,10 @@
+export class AuthError extends Error {
+  constructor() {
+    super('Bad API key')
+    this.name = 'AuthError'
+  }
+}
+
+export function isAuthError(error: unknown): error is AuthError {
+  return error instanceof Error && error.name === 'AuthError'
+}