re-run CircleCI job + re-deploy on playground (Dash Brain Viewer)

[christopherjeon]

Issue for app: #24

App pull request

• This is a new app
• I am improving an existing app (redesigns/code "makeovers")

About

• Playground deployment URL: https://dash-playground.plotly.host/dash-brain-viewer/
• Current gallery app URL: https://dash-gallery.plotly.host/dash-brain-viewer/

Workflow

• I have created a branch in the appropriate monorepo, and the
  elements necessary for successful deployment are in place.
• If the app is a redesigned and/or restyled version of an
  existing gallery app, I've summarized the changes requested in the
  appropriate Streambed issue and confirm that they have been applied.
• If the app is on the Dash Gallery portal, I have added a link to
  the GitHub repository for the source code in the portal description.
• I have removed all Google Analytics code from the app's
  assets/ folder.

The pre-review review

I have addressed all of the following questions:

• Does everything in my code serve some purpose? (I have removed
  any dead and/or irrelevant code.)
• Does everything in my code have a clear purpose? (My code is
  readable and, where it isn't, it has been commented appropriately.)]
• Am I reinventing the wheel? (I have used appropriate packages to
  lessen the volume of code that needs to be maintained.)

[celinehuang]

💃