Improve Scripting Tool

[NghiaTranUIT]

Acceptance Criteria

• Add the ArrayBuffer link in this error ❌ Error: Could not parse the body as data. (Content-Type=application/octet-stream), so users can know how to fix it
• Improve the built-in btoa, it will automatically check ArrayBuffer type and do it behind the scene

Related #796

[NghiaTranUIT]

Beta: https://proxyman.s3.us-east-2.amazonaws.com/beta/Proxyman_2.18.0_Improve_Scripting_Array_Buffer.dmg