Notification views & create manifest

[dpgraham4401]

Description

This PR from this long standing branch updates a couple things.

1. It provides the POC for using the in memory database to store the status of long running tasks which can be retrieved by APIViews.
2. updates our notification center display and logic for polling the backend for monitoring the status of long-running tasks
3. It updates our logic for creating a new manifest so when a manifest is successfully created in RCRAInfo, we pull that manifest from RCRAInfo and store it in the hazatrak relational database.

next steps will involve

1. updating the global state management to display the result of the task (whether the manifest was successfully created on now)
2. add a step to the front end to direct the user to view the newly created manifest.
3. extending our task status tracking method (to use the in memory db to store current status) to other long running tasks.

see #557 for further details

Issue ticket number and link

closes #563

Checklist

• I have added tests that prove my fix is effective or that my feature works
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings