Fix welcome notification on wk.org

[hotzenklotz]

This PR is a follow up for the antd v5 upgrade and fixes the styling of the "Welcome"/"Sign up for free" notification on wk.org.

Before:

After:

Steps to test:

• Copy the URI/link to a dataset for them the toolbar
• Open the link in an incognito browser window
• The welcome notification should show

Issues:

• follow up to Upgrade antd to v5 #6861

---

(Please delete unneeded items, merge only when none are left open)

• Updated changelog
• Updated migration guide if applicable
• Updated documentation if applicable
• Adapted wk-libs python client if relevant API parts change
• Removed dev-only changes like prints and application.conf edits
• Considered common edge cases
• Needs datastore update after deployment

[philippotto]

I assume this is ready for review? Code looks good, but one thing:

The learn more button is a bit hard to read when it's hovered (independent of dark / light mode):

[hotzenklotz]

I assume this is ready for review? Code looks good, but one thing:

Yes, it is ready.

The learn more button is a bit hard to read when it's hovered (independent of dark / light mode):

Not really sure what to do about this. It is an antd ghost button and that is the default behavior: https://ant.design/components/button?theme=dark#components-button-demo-ghost

[philippotto]

Not really sure what to do about this.

Can you slap on a class which changes the hovering color? Since the bg is always blue, it should be independent of the theme.

[hotzenklotz]

Not really sure what to do about this.

Can you slap on a class which changes the hovering color? Since the bg is always blue, it should be independent of the theme.

Done

[philippotto]

nice, thank you!