[EUWE] Move VM/Web console toolbar buttons to an Access dropdown

[bmclaughlin]

Moved MKS/VNC/VMRC and Cockpit toolbar buttons to an Access dropdown. Additional UX changes per the screenshot in the BZ link below.

This is the Euwe specific PR for #12720.

https://bugzilla.redhat.com/show_bug.cgi?id=1396524

[miq-bot]

Checked commit bmclaughlin@9b38984 with ruby 2.2.5, rubocop 0.37.2, and haml-lint 0.16.1
2 files checked, 6 offenses detected

app/helpers/application_helper/toolbar/x_vm_center.rb

• ❗ - Line 231, Col 3 - Style/IndentArray - Indent the right bracket the same as the first position after the preceding left parenthesis.
• ❗ - Line 233, Col 5 - Style/IndentArray - Use 2 spaces for indentation in an array, relative to the first position after the preceding left parenthesis.
• ❕ - Line 245, Col 121 - Metrics/LineLength - Line is too long. [207/120]
• ❕ - Line 255, Col 121 - Metrics/LineLength - Line is too long. [127/120]
• ❕ - Line 258, Col 121 - Metrics/LineLength - Line is too long. [142/120]
• ❕ - Line 262, Col 121 - Metrics/LineLength - Line is too long. [125/120]

[bmclaughlin]

@miq-bot add_label ui, blocker, bug