Redirect "/list" to "/" when there is no token

[emilysellers]

Description

This PR fixes the user being able to view the List view if they don't yet have a token. Now, if the user doesn't have a token and clicks List in the nav bar or enters "/list" in the URL bar, the Home view persists. Once the user creates a new list or enters a token for an existing list, the token is stored in local storage and the user is then able to view the List view.

Something to consider: should the same check be implemented for the Add Item view so that if a user doesn't yet have a token, they are not able to navigate to the Add Item view?

Related Issue

Closes #24

Acceptance Criteria

• If the user doesn't already have a token, clicking List in the nav bar or entering "/list" in the URL bar will keep the user on the home page.

Type of Changes

	Type
✓	🐛 Bug fix
	✨ New feature
	🔨 Refactoring
	💯 Add tests
	🔗 Update dependencies
	📜 Docs

Updates

Before

In this before video, there is no token in local storage. The user clicks the List link in the nav bar and is redirected to the List view.

TCL.Issue.14.before.mov

After

In this after video, there is no token in local storage. The user clicks the List link in the nav bar and still sees the Home view, then enters "/list" in the URL bar and still sees the Home view. The user then clicks the Create new list button, the token is saved to local storage and the user is redirected to the List view.

TCL.Issue.14.after.mov

Testing Steps / QA Criteria

• Visit the preview URL for this PR: https://tcl-57-smart-shopping-list--pr25-es-no-token-redirect-k44q2dr8.web.app/
• Click on List in the nav bar and check that the Home view persists.
• Enter "/list" in the URL bar and check that the Home view persists.
• Click Create new list button. Check that a token is saved in local storage and that you're redirected to the List view.

[github-actions]

Visit the preview URL for this PR (updated for commit 1d0906b):

https://tcl-57-smart-shopping-list--pr25-es-no-token-redirect-k44q2dr8.web.app

_{(expires Mon, 08 May 2023 03:31:54 GMT)}

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[djtaylor8]

Thanks for doing this, @emilysellers!

[Amy-Pr]

Thanks Emily! To answer your question, I would vote for doing the same with the Add Item view.

[danainjax]

Good & thanks!

[danainjax]

It's a very useful line of code, @emilysellers. Thank you for doing this extra to make the app more usable. 😁👍🏻