only for EE-specific contents under /ee/app/assets/javascripts/[m-z]*

To improve import order rules

Set import/order, import/no-cycle, and import/no-unresolved
as warn to make this update smoother.

- Prometheus uses == (not =) for equality. Alerts that use single
  equal (=) result in a syntax error that silently fails to
  load any new alerts

-
  https://prometheus.io/docs/prometheus/latest/querying/operators/#comparison-binary-operators

- Prevent triggering a premature modal dismissal on errors
- Selects a default operator to help the user
- Places the error message with correct spacing

Disables the vue-i18n eslint rules for files
that are not able to be autofixed, this will
stop these offences causing pipeline failures
but they will need manual fixing.

Buttons and valid state go in there, so makes sense
for form to contain the modal

Adds a new query text input for metric alerts

Removes unused CSS
Replaces CSS with utility classes

Adding support for metrics alerts disabled multiple query support.
To avoid a data model refactor, this enables the visual of multiple
queries per chart on the front end, combining queries based on
metric group, title, and y-axis label.

This also adds support for adding and editing alerts based on the
query selected rather than the single metric associated with the chart.

Upgrades prettier to 1.15.3
Runs `yarn prettier-save-all` against the codebase
Most changes are due to https://github.com/prettier/prettier/pull/5519

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>