chore: return valid JSON string from showError

Author: nsalamad

src/commands/variations/__snapshots__/create.test.ts.snap

@@ -73,8 +73,8 @@ exports[`variations create creates a variation and returns the full feature in i
 `;
 
 exports[`variations create errors when missing required flags in headless mode 1`] = `
-"❌ key is a required field
-❌ name is a required field
+"key is a required field
+name is a required field
 "
 `;
 

src/ui/writer.ts

@@ -72,7 +72,11 @@ export default class Writer {
     }
 
     public showError(message: string): void {
-        console.log(chalk.red(`❌ ${message}`))
+        if (this.headless) {
+            console.log(message)
+        } else {
+            console.log(chalk.red(`❌ ${message}`))
+        }
     }
 
     public headless: boolean