[Feature request] Rerun server when server file is edited

**Is your feature request related to a problem? Please describe.**
Lets say your working on app.js, a NodeJS server file. You run the script using the extension, make a few changes. When the users saves these changes to app.js, have a setting that will restart the app.js file.

**Describe the solution you'd like**
A setting to rerun a script when the file has been edited