[CLC-2948] Added .cc-canvas-embedded class to primary wrapper div in embedded template, to enable control over styling of .cc-container-main wrapper
[CLC-2948] Fixed iframe resizing by applying 'collapse' classes to rows. Applied style to remove border/background-color from user search results form.
[CLC-2948] Updated Javascript controller to resize iframe upon page load
Merge pull request #1922 from redconfetti/CLC-2948-QA

QA CLC-2948 - Add User to Course iframe not resized after search