Add 'GRANT DATABASE' to rbac

[hal-eisen-MG]

Description

Updated the role-based-access-control.mdx based on a thread in Discord. Added a link in the main table for the DATABASE privilege which points to the new multi-tenancy page. Added "GRANT DATABASE" to several of the examples.

Pull request type

Please check what kind of PR this is:

• Fix or improvement of an existing page
• New documentation page, release related

Related PRs and issues

PR this doc page is related to:
(especially necessary if the PR is related to a release)

Closes:
(paste the link to the issue it closes)

Checklist:

• Check all content with Grammarly
• Perform a self-review of my code
• Make corresponding changes to the rest of the documentation (consult with the DX team)
• The build passes locally
• My changes generate no new warnings or errors
• Add a corresponding label
• If release-related, add a product and version label
• If release-related, add release note on product PR

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
documentation	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Sep 12, 2024 1:14am

[antejavor]

But this is also an issue that inspired me to open this issue:
https://memgraph.com/docs/database-management/authentication-and-authorization/role-based-access-control#manage-all-privileges-at-once

After this command:

GRANT ALL PRIVILEGES TO user;

User should have all permission, you still need to run these (next to the command above) :

GRANT CREATE_DELETE ON LABELS * TO user;
GRANT CREATE_DELETE ON EDGE_TYPES * TO user;

To be able to create a node or relationship, while the docs suggest otherwise.

[katarinasupe]

@antejavor can you review/update this PR by the end of next week? (Nov 22)