web: add additional new line after imports

Author: x1unix

web/src/editor/props.ts

@@ -7,7 +7,7 @@ export const DEMO_CODE = [
     'package main\n',
     'import (',
     '\t"fmt"',
-    ')',
+    ')\n',
     'func main() {',
     '\tfmt.Println("Hello World")',
     '}\n'