Fix Forms component sidebar implementation

[ckd002]

Description

There was a misspelling in a path used to determine whether or not the sidebar was displayed. While testing the correction of this misspelling, I identified several undesired behaviors of this implementation. This PR updates the implementation to remove the undesired behaviors which also eliminates the misspelling.

Linked JIRA Task or Github Issue

JIRA Task: EDPUB-1732

Types of changes

What types of changes does your code introduce to Earthdata Pub (EDPub)?
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• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if adding or updating the existing documentation resources)
• Other (if none of the other choices apply)

Checklist

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• I have read the Contributing Guide
• I have updated the CHANGELOG
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added the necessary documentation (if appropriate)
• Any dependent changes have been merged and published in downstream modules

Validation Steps

This will help us get a jump start on validating your PR by describing the steps to replicate
and validate the expected behavior. (For an example of good validation instructions, check out Bryan's Bouncy Ball PR.)

1. Make sure all merge request checks have passed (CI/CD).
2. Pull related branches locally.
3. Navigate to http://localhost:3000/forms
4. Verify that no sidebar is displayed on the index page
5. Click the Add Form button
6. Verify that no sidebar is displayed on the add form page
7. Navigate back to the forms page and click on a form name
8. Verify that no sidebar is displayed on the edit page
9. Navigate to the dashboard and create a request
10. Move the request ahead to a form review step
11. Verify that the sidebar is displayed
12. On the sidebar, click Back to Forms
13. Verify that the sidebar is no longer visible

Further comments

I initially just corrected the misspelling, but that made the /forms/add page shift to the left in an unpleasant manner. I found that this was due to the className for the content div being altered by the sidebar value. I couldn't find a reason for the className value to be altered by the sidebar and similar components (Sections, Workflows, Questions) have it hardcoded, so I removed the condition. I also realized that those components don't use conditionals for displaying the sidebar either so I attempted to remove that condition as well. This worked for the most part, but resulted in a quirk where if you navigated to a form review page and then clicked the Back to Forms link in the sidebar, the sidebar box would stay present on the forms, forms/add, forms/edit pages until you did a refresh. This led me to updating the conditional to check for the one case we do want the sidebar displayed.