Integrate Slack API to the experiment data form for posting the notification in slack

[nozomione]

Context

Post a user's request data request submission for the experiments with non-downloadable samples (https://github.com/AlexsLemonade/refinebio-web/issues/221) to Slack when Github and/or Hubsport requests fail.

Once the submission completed, replace the "Request Experiment" button with the " [Icon] Experiment requested" text, as shown below (reference https://github.com/AlexsLemonade/refinebio-frontend/pull/626#issuecomment-488332026):

Before the submission:

After the submission:

Problem or idea

We'll need to:

• integrate the Slack API to the experiment data form in order to post users' request data submission to slack
• replace the experiment request button with the text provided above.

Solution or next step

• Reuse #290 implementation
• Integrate the Slack API in the experiment request form
  • Create any sub-components or helpers as necessary
• Clean up any mock data or temp code blocks created for demo