Update helper.py: removed full path of main script as it should be re…

[mubbashir]

removed full path of main script as it should be re as it should be relative to avoid resource loading failures

[mubbashir]

It more of a problem when output dir is not an absolute path hence adding f"{output}/index.js" will result in broken paths

[eggachecat]

Hi @mubbashir thanks for the PR.

But I don't understand the change actually: with the PR, I don't think function dump_html_output will work anymore, since now main_script_path is undefined.

Are you refering to something like os.path.join(output, 'index.js') , which makes more sense. The original string concatation for path join is a bad practice.