Apply suggestions from code review

Co-authored-by: Victor Berchet <victor@suumit.com>

Author: dario-piotrowicz

packages/cloudflare/src/cli/build/utils/create-config-files.ts

@@ -12,7 +12,7 @@ import { createWranglerConfigFile, getWranglerConfigPath } from "../../utils/wra
  * @param projectOpts The options for the project
  */
 export async function createWranglerConfigIfNonExistent(projectOpts: ProjectOptions): Promise<void> {
-	const wranglerConfigFileExists = !!getWranglerConfigPath(projectOpts.sourceDir);
+	const wranglerConfigFileExists = Boolean(getWranglerConfigPath(projectOpts.sourceDir));
 	if (wranglerConfigFileExists) {
 		return;
 	}

packages/cloudflare/src/cli/commands/migrate.ts

@@ -77,10 +77,6 @@ async function migrateCommand(): Promise<void> {
 		(gitIgnoreContent) => !gitIgnoreContent.includes("NEXTJS_ENV=")
 	);
 
-	if (!fs.existsSync(".dev.vars")) {
-		printStepTitle("Creating .dev.vars");
-		fs.writeFileSync(".dev.vars", "NEXTJS_ENV=development\n");
-	}
 
 	printStepTitle(`${fs.existsSync("public/_headers") ? "Updating" : "Creating"} public/_headers file`);
 	createOrAppendToFile(
@@ -112,8 +108,8 @@ async function migrateCommand(): Promise<void> {
 		}
 
 		packageJson.scripts = {
-			...packageJson.scripts,
 			build: "next build",
+			...packageJson.scripts,
 			...openNextScripts,
 		};