feat(node-card): Rendering issues to address

[simonwinter]

Summary

Following on the work of #2174, there are a few issues that have fallen out of this issue:

• there are new in-flow & on-demand components. They are copy+pasted from the original node-card component. There's much that can be shared, particularly the styles between the components. Let's see what we can rationalise here.
• The styled-block and styled-inline components are causing some rendering issues (see below). Ideally we'd be able to merge the styles together to resolve these issues.
• Output overflow not providing scrolling.
• Tooltips displayed on the on-demand instances are not displaying correctly (i.e. missing bg colour)
• If a node-card's title is a programming language, ensure that it renders the correct title, capitalisation etc.

Styled block not merging bg colour & padding. Also note the elements are not displayed full width

Inline block not merging bg colour and padding

Dynamically generated classes are not rendering as expected

Missing scrollbar on output with overflow

Tooltips on top of tooltips!

[nokome]

Closing as mostly done