Update managing-logins.md

[EladFirebolt]

replaced double quotes with single quotes

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context.

{:note}

When should this PR be released to the public?

You can request an immediate release to the public docs if the feature is live.
If it's part of a future release, please specify which release it should be released with.


Ex: Packdb 4.4, estimated release to public: 8/28/24.

Documentation Checklist

• I've previewed my documentation locally running make start-local (or using this tutorial)
• I've validated that indexing works and that I'm able to navigate to the documentation page from the table of contents

If this PR touches a function implementation (aggregate, scalar, or table-valued):

• I've made sure my documentation is aligned with these guidelines on function documentation
• I've validated that the parent of my docs page is set correctly and the function shows up in the right category of the table of contents
• I've made sure that the function was added to the function glossary

[nanimal-fb]

I made the changes manually (the PR check isn't working on repo) and your changes are live: https://docs.firebolt.io/Guides/managing-your-organization/managing-logins.html
So I will close this PR and look into this error when Arushi returns. Please submit to the staging repo from now on - I check those every 24 hours or so.