Resolves #7180.

* Update deploy instructions in contributing guide

* Update docs publishing instructions

* Add question issue template

* Fix bug report template formatting

* Fix bug report template formatting

* Add labels to pull request template

Update url-loader to 2.0.1

This closes #7359 by making IMAGE_INLINE_SIZE_LIMIT=0 actually disable image inlining.

We use url-loader's `limit` option to set the line at which images will be inlined, and we basically expose this option to our end users via the IMAGE_INLINE_SIZE_LIMIT environment variable. Most people using it want to disable inlining images all together (the major motivator for adding it at all was I think for strict CSP), and our documentation said setting the value to zero would do that. However, it did the opposite: url-loader treated zero as "no limit".

The update to 2.x fixes this; zero means nothing gets inlined. The other changes from the version bump shouldn't affect us:
- minimum node version is 8.9.x, we already require 8.10.x
- the limit was "greater than", is now "greater than or equal to"

* Attempt at fixing CI issue on windows

* Try to debug why verdaccio isn't in the ps output

* Just remove the kill call alltogether

Co-Authored-By: Ian Schmitz <ianschmitz@gmail.com>

closes #7288

* Upgrade webpack to 4.35.0 to fix dynamic import issue

* Add a test maybe?

* Create bug_report.md

* Create proposal.md

* Update proposal.md

* Delete ISSUE_TEMPLATE.md

* Update bug_report.md

* Update proposal.md

Fixes #3437

Array format for `overrides` key in eslint config file is now enforced in ESLint v6. Anyone who uses `eslint-config-react-app` and ESLint v6 gets a type mismatch error. This commit fixes the error by converting the object into a one-element array containing this object.
Only 2 characters are added: `[` and `]`. The large diff is due to formatting.

* Update deprecated package reference

* Fixed install method after feedback

I'm adding #6821 to breaking changes as this causes any existing script
that relies on the structure of `assest-manifest` to break.