[BB-3615] Improve deployment toolbar

Created by: spokerman12

We're fulfilling the following user story:

"As a OCIM User, I want the deployment status to be clear so that there is less confusion"

JIRA tickets: BB-3615

Dependencies: None

Screenshots: See Jira ticket

Merge deadline: "None"

Testing instructions:

1. Pull this branch to your OCIM local environment.
2. Override parameters as necessary to access the console. My suggestion on how to do this is to set lmsUrl = 'testurl'; on /frontend/src/ui/components/Header/Header.tsx
3. Create a test account (To do so, put a return on top of registration/models.py:validate_available_subdomain so it bypasses domain validation)
4. Set a false && (_loading_... in line 69 to enable the button so you can test the Toast notification that pops up when clicking Publish. It has a timeout of 4 seconds (for now, the deployment reload timer messes with this).

Author notes and concerns:

1. Snapshots were updated
2. Testing the tooltip text requires considering enzyme, which will be done later.

Reviewers

• @farhaanbukhsh