Load ui-components for printing with asset pipeline require

[skateman]

This is a production-only issue, the SASS @import doesn't have the yarn packages in its load path. By calling the require this is solved. To reproduce it, click on the printer icon on any VM's summary screen.

Before:

After:

Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1651194

@miq-bot add_reviewer @himdel
@miq-bot add_label bug, hammer/yes

[himdel]

LGTM,
for some reason, rails sass treats the import as an url import.

@import '~@manageiq/ui-components/dist/css/ui-components.css'; would only work with webpack (and that would probably break patternfly style overrides).

So, asset pipeline for the rescue 👍

Tested in UI, does not break in devel mode.
(Not tested on an appliance as it's currently impossible to build assets without running out of free space.)

Merging when green.

[miq-bot]

Checked commit skateman@3505e68 with ruby 2.3.3, rubocop 0.52.1, haml-lint 0.20.0, and yamllint 1.10.0
0 files checked, 0 offenses detected
Everything looks fine. ⭐

[simaishi]

Hammer backport details:

$ git log -1
commit 91dc4d59ed3fb7117f36719bbe9c388d4bf27bbb
Author: Martin Hradil <himdel@seznam.cz>
Date:   Mon Nov 19 19:21:09 2018 +0100

    Merge pull request #4941 from skateman/print-ui-components
    
    Load ui-components for printing with asset pipeline require
    
    (cherry picked from commit 9ad557b14dd91cd151c51308429303aebd092849)
    
    Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1651194