refactor sprockets js files into webpacker

[johrstrom]

We're still using sprockets to manages some javascript files. This ticket is to track the progress on migrating all those files into files/modules being managed by webpacker.

ondemand/apps/dashboard/app/views/layouts/application.html.erb

Line 13 in f2d596f

<%= javascript_include_tag 'application' %>

I guess we'd want to standardize on ES6 modules, but I'm not super familiar with the ecosystem and how much work we'd need to put into transpiling older packages, but that's something we can discuss here.

This may be a large ticket so it should definitely get fixed in multiple small PRs.

• migrate dashboard.js.coffee to webpack #1512
• migrate our portions of the file editor to webpack #1582
• migrate errors.js.coffee to webpack #1513
• migrate fontawesome-iconpicker.js to webpack #1514
• migrate iconInfo.js to webpack #1515
• migrate application.js to webpack #1516
• migrate apps.js.coffee to webpack #1517
• migrate products.coffee to webpack #1518
• migrate batch_connect/session_contexts.coffee to webpack #1519
• migrate batch_connect/sessions.coffee to wepack #1520
• migrate files.js from webpacker #1742
• migrate activejobs javascript to webpacker #1747
• migrate sprocket require chain #1784
• fix data-confirm-modal #1783
• migrate images to webpack #1801
• remove sprockets from rails toolchain #1802
• remove turbolinks #1809

┆Issue is synchronized with this Asana task by Unito

[ericfranz]

I also think this is something that isn't urgent. Somethings we will want to migrate - others we might want to rewrite into webpacker, others we might want to just render unnecessary (like if we pull out the "web dev" interface altogether.

[johrstrom]

After all this work - this is now complete.