Display a loading indicator while fetching a workspace component

[StephenEsser]

Issue Description

There is currently no visual feedback a workspace iframe is loading. Larger workspaces can take a few seconds to load. During this time we should display visual feedback to indicate the workspace is loading.

Components should be lazy loaded to quickly display the loading indicator while the full component JSON is being fetched.

Issue Type

• New Feature
• Enhancement
• Bug
• Other

Expected Behavior

A loading indicator should display while the full component JSON is being fetched.

Current Behavior

There is no visual feedback a component is loading.

Steps to Reproduce

1. Create a workspace with a lot of content
2. Refresh the page, or tab between the large workspace and an empty workspace
3. Observe the larger workspace displays as a blank white screen for a few seconds with no indication any content is loading.

Environment

• All environments

[StephenEsser]

Resolved with: #68