fix(editor): remove grey border

[owilliams320]

Description

removing gray border inserted in every monaco editor instance

Test Steps

• [ ] npm run start
• [ ] then go look at the editor docs

General Tests for Every PR

• [ ] npm run start still works.
• [ ] npm run lint passes.
• [ ] npm run stylelint passes.
• [ ] npm test passes and code coverage is not lower.
• [ ] npm run build still works.

Screenshots or link to StackBlitz/Plunker