138 fix htmx

[janelle-caktus]

Make sure to run npm install AND npm run webpack-build when testing this branch.

• Added to package.json: webpack, monaco editor, htmx.org, monaco editor webpack plugin.
• New_pipeline and new_step pages now functioning properly and with no errors. (There is one warning, which may be resolved by updating Webpack, but does not impact functionality).
• Updated hx-headers syntax in both new_step & new_pipeline to resolve a JSON parsing error.
• Added to root directory: index.js, and webpack.config.js
• Removed CDN links for htmx and monaco editor. Now bundling Bootstrap, popper, monaco editor, and htmx into new app.js using webpack. Additional js files to support using other languages in monaco editor in the future are chunked out from app.js for the sake of rendering speed.
• Updated forms.py to reflect monaco editor widget code change for selecting language.
• Updated base.html to reflect the changes to javascript used, and made a small UX change to Projects dropdown.
• Commented out all javascript references in gulpfile.js (they can probably be deleted, but I left them in case we need to reference for anything), since they are now being bundled by webpack.

These changes should resolve issues: Fix HTMX and remove link from new_step.html#138 & Fix Monaco Import#120

[ronardcaktus]

@janelle-caktus Please remove gulp from the Readme since that is now happening on Webpack.

[janelle-caktus]

@tobiasmcnulty Thanks for the feedback!

• Added the webpack commands to the README.
• Added all of the new js files that are auto-generated by webpack to the .gitignore and deleted them in git. Also deleted references to files we no longer have in the .gitignore
• Removed the commented out code in the gulp file, but I will defer to you on whether the remaining code is going to be necessary for anything!
• Added the webpack build command to the docker node file, but not sure if that's correct (or if it worked as expected), because I'm unable to get the docker containers running for this project at this time.

@tobiasmcnulty UPDATE on 11/3: Apparently the command I added to the docker node file broke the circleci test...SO, I'm just gonna remove that for now...

@tobiasmcnulty UPDATE on 11/4: Fixed this! Replaced the gulp commands in package.json with gulp commands, and that should take care of Docker!(?)! @ronardcaktus If you have time, could you test this and let me know?