bugfix: YAML Codemirror Editor Disable Tabs Default

[MKwenhua]

Purpose There was a bug that whenever someone copied a line and then repasted it, the editor would not save. Additionally using the tab key to indent two spaces was actually saved as invalid YAML.

JIRA

Changes

• Improvements and fixes

  • I changed the the ui-codemirror option indentWithTabs to false
  • I added a codemirror callback that replaces Tab characters with spaces.

• Changes to developer setup/environment

• Architectural changes

• Migrations or Steps to Take on Production

• Library changes

• Side effects

Screenshots

• Before

• After

Feature Server

How to Verify These Changes

• Specific pages to visit

• Steps to take

  • Go to http://dev.admin.cbcortex.com/legacy#/webpages and try and use tabs, or copy a chunk of code and paste it again in the Code Mirror editor.

• Responsive considerations

Relevant PRs/Dependencies

Additional Information

I made the mistake of setting indentWithTabs to true. Here is the Code Mirror docs: https://codemirror.net/doc/manual.html

[MKwenhua]

@toastercup I will switch cortex develop back to legacy-develop once this gets approved or if we decide not to merge it.But I need a Cortex branch that has sites configured in cloud66 to feed from.