Feature/jlab menu customization

[marcelovilla]

Reference Issues or PRs

See #2216

What does this implement/fix?

Put a x in the boxes that apply

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds a feature)
• Breaking change (fix or feature that would cause existing features not to work as expected)
• Documentation Update
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Build related changes
• Other (please describe): UI changes

This PR implements the following changes in the JupyterLab menu configuration:

1. Remove Log out and Hub Control Panel items from the File menu and add a Home item instead.
2. Rename Nebari menu item to Services and put it before (left) of Help.
3. Add link to Nebari docs in the Help menu.

Testing

• Did you test the pull request locally?
• Did you add new tests?

Any other comments?

[krassowski]

Was moving Home to the front of File intended, or was it meant to remain in the Services submenu and be just disabled in the File menu? It is not clear to me from #2216 (comment).

Looks good otherwise:

[marcelovilla]

@krassowski yes, it was meant to be moved from the Services menu to the top of the File menu. The issue was not very clear about that but we discussed it internally.

[krassowski]

LGTM!