zipkin-ui: fix jumpiness on "more info" button (#1847)
zipkin-ui: fix jumpiness on "more info" button (#1847)

The "more info" button on the span detail view is all jumpy. Upon clicking the button, the appearing table gets squished together.

This happens because the `display` CSS property gets set to `block`. Where in this case it should really be `table`.

We can avoid the issue by wrapping the table in an extra div, as the div does not mind the `display: block`.

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