refactor: clean up code formatting and improve readability in various files

frontend/src/lib/backoff.test.ts

@@ -1,7 +1,6 @@
 import { createExponentialBackoff } from "./backoff";
 import { describe, expect, it, vi } from "vitest";
 
-
 describe("createExponentialBackoff", () => {
   it("uses default options", () => {
     const backoff = createExponentialBackoff();

frontend/src/lib/gateway-form.ts

@@ -50,7 +50,8 @@ export async function checkGatewayConnection(params: {
   } catch (error) {
     return {
       ok: false,
-      message: error instanceof Error ? error.message : "Unable to reach gateway.",
+      message:
+        error instanceof Error ? error.message : "Unable to reach gateway.",
     };
   }
 }