Ensure that the Authorize button stays on the right when Server and Schemes selectors are not present.

Refs #8940

Description

This is a fix for an issue caused by this PR #9325. You can find details about the issue here.

Motivation and Context

This will stop the awkwardness of having the Authorize button on the left (users are used to having it on the right).

How Has This Been Tested?

I tested these style changes using multiple devices on multiple platforms with different screen sizes.
Also, because these are just styling changes no new tests are needed and all existing tests pass.

Screenshots (if appropriate):

Checklist

My PR contains...

• No code changes (src/ is unmodified: changes to documentation, CI, metadata, etc.)
• Dependency changes (any modification to dependencies in package.json)
• Bug fixes (non-breaking change which fixes an issue)
• Improvements (misc. changes to existing features)
• Features (non-breaking change which adds functionality)

My changes...

• are breaking changes to a public API (config options, System API, major UI change, etc).
• are breaking changes to a private API (Redux, component props, utility functions, etc.).
• are breaking changes to a developer API (npm script behavior changes, new dev system dependencies, etc).
• are not breaking changes.

Documentation

• My changes do not require a change to the project documentation.
• My changes require a change to the project documentation.
• If yes to above: I have updated the documentation accordingly.

Automated tests

• My changes can not or do not need to be tested.
• My changes can and should be tested by unit and/or integration tests.
• If yes to above: I have added tests to cover my changes.
• If yes to above: I have taken care to cover edge cases in my tests.
• All new and existing tests passed.