As mentioned in
https://github.com/wojtekmaj/react-pdf/blob/master/README.md,
pdf.js needs the bundled cMaps files to work.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/62152

The GitLab UI update changed the spinner selector from `spinner` to
`gl-spinner`, so we need to update it, so that our tests won't fail.

It will be hooked up to the markdown editor later

This fixes fill colors not working with Mermaid and pulls
in a number of other fixes.

* https://github.com/knsv/mermaid/blob/master/CHANGELOG.md
* https://github.com/knsv/mermaid/#special-note-regarding-version-82

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/64601

Removed stylelint-error-string-formatter
 as this was having a circular reference fail

This is needed to fix an issue where updating to the latest Webpack
causes an acorn dependency error:
https://github.com/webpack-contrib/webpack-bundle-analyzer/issues/245

Seen while trying to update dependencies for Mermaid in
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/30985

Moved the block that fails tests on unmocked axios requests from
test_setup to its own mock, and added a jQuery mock that fails
tests if they use unmocked $.ajax().

Signed-off-by: NTakuya Noguchi <takninnovationresearch@gmail.com>

A recent update in [GitLab UI] and setting the [config.assets.paths] to
include `node_modules` for the resolution of SCSS imports, allows us to
have much nicer imports which don't rely on brittle relative paths.

This change also forwards @gitlab/ui to the newest version

[GitLab UI]: https://gitlab.com/gitlab-org/gitlab-ui/merge_requests/602
[config.assets.paths]: https://gitlab.com/gitlab-org/gitlab-ce/blob/d9026d0ffa0/config/application.rb#L169

This fixes dotted lines not rendering when the htmlLabels setting is
false (https://github.com/knsv/mermaid/pull/828).

Full list of changes: https://github.com/knsv/mermaid/releases

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/60869

Upgrades prettier to the latest version, and auto-corrects files with
yarn prettier-all-save

The diffs all seem to stem from formatting changes in brackets within
template literals. Nothing major.

Relevant changelogs here:

https://prettier.io/blog/2019/04/12/1.17.0.html
https://prettier.io/blog/2019/06/06/1.18.0.html

- Upgraded gitlab-ui to v4.0.0
- Migrated pagination_links to reflect breaking changes introduced
in gitlab-ui v4.0.0

Detect links containing zoom.us followed by j, s, or my
Add link below Issue title that links to Zoom meeting

Unnecessary offences include false positives as well as flagged
errors which have follow up issues in order to be addressed.

Not all issues have been addressed before this being submitted
in the spirit of results and iteration.

- Upgraded core-js from v2.x to v3.1.3
- Updated core-js import statements
- Enabled URL polyfill

It takes a lot of lines to move a script

Signed-off-by: NTakuya Noguchi <takninnovationresearch@gmail.com>

Some dependencies have incompatibilities with Node v12, which will
become LTS in October. Namely node-sass and needed to be forwarded in
order for their native extensions to compile without errors.