* Remove conflicting gitignore lines, add reference

Ref (introduction of a new "public" folder in Next.js):
https://nextjs.org/blog/next-9-1#public-directory-support

* Improve solution to conflicting files

* Update Node.gitignore

* Fix coverage.lcov to *.lcov

Lerna is an increasingly popular tool within node ecosystem to manage package dependencies and having writes to a `lerna-debug.log` following the yarn and npm precedence when error is encoutered.

* [Node] Ignore diagnostic report files

* Add documentation URL

* Stricter regex

Project site: [link](https://fuse-box.org/)

Corroboration: [link](https://fuse-box.org/docs/development/configuration#cache)

Reason: Don't VC cache

Hopefully, I did this correctly!

Node.gitignore build/Release Compiled binary addons: http to https
https://nodejs.org/api/addons.html

This adds ignores for the `yarn-debug.log*` and `yarn-error.log*` files sometimes produced by the [Yarn package manager](https://yarnpkg.com).

Some .gitignore parsers interpret directory vs non-directory patterns strictly (e.g. monochromegane/go-gitignore), so a `node_modules` pattern would not necessarily match against a real `node_modules` directory. It's generally safe to add a trailing slash to directory .gitignore patterns.

Add `*.tgz`, the output of `npm pack`, or other build-steps.

Some popular applications (for example, Phusion Passenger) leave `*.pid.lock` file(s). For example, when you type `passenger start` with simple express app listening on port 3000, it leaves the following files:

* `passenger.3000.pid` (removed when passenger stops)
* `passenger.3000.log`
* `passenger.3000.pid.lock`

While `*pid` and `*.log` are ignored, `*.pid.lock` remains unignored. Phusion Passenger is quite popular, and `*.pid.lock` file should be ignored.

[nyc](https://github.com/bcoe/nyc) is quite popular, and under some circumstances it writes to `.nyc_output` directory. This directory should be ignored by default.

Like in #1732, Docker images can consider project directoy as $HOME

Thanks to @arcresu for pointing out!

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