DCJ-583: Remove boostrap and jquery

[rushtong]

Addresses

https://broadworkbench.atlassian.net/browse/DCJ-583

Summary

This PR addresses a security vulnerability in V3 Bootstrap described here: GHSA-9mvj-f7w8-pvh2. Removing bootstrap breaks all pages in the site so instead, this PR copies the most relevant bootstrap styles, minus the carousel vulnerabilities, into a separate css file. In future work, we can peel away at the bootstrap styles page by page in favor of our current usage of Material UI. This allows us to remove jquery which was a requirement for bootstrap v3.

The only functional consequences of the dynamic nature of dropdown related classes are in the following features:

• Header Profile Navigation: The displayed username in the right-most nav link used this to show a dropdown with links to the user's profile and signing out. This was replaced with a simple state variable.
• Manage DAAs: This PR introduces a breaking change to the "Add All Users to DAC" dropdown. This feature will be replaced with "Add All Users to DAA" so I am accepting this as new technical debt for a feature that is not released to production yet.
• Admin Manage User: The institution selection widget is replaced with an existing FormFieldTypes.SELECT component that does the exact same thing and does not rely on bootstrap+jquery. This feature now works similarly to the institution selection widget on the User Profile page.
• SO Add Library Card User: This feature is essentially unreachable right now and can be ignored.

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[rushtong]

This file is unused

[fboulnois]

looks good 🎉

[okotsopoulos]

Thank you!