Remove src/ directory from bundled extension

[yatriks]

Seems like it's not necessary, and should be a simple addition here:

kinase/Kinase.js

Line 58 in 02f7e93

shell.exec('yarn && webpack && rm -rf node_modules/', {

Happy to write a pull request.

[marcua]

Sounds great! Send a PR our way. Thanks for using and contributing to Kinase!