empty but successful analysis - unintuitive ui

[MikiDi]

After having completed a successful analysis, one would expect to be able to drop down the "configure mapping" accordion. However, if for whatever reason the analysis happened on an empty dataset, the the accordion will refuse to open. This is somewhat un-intuitive if one doesn't realize the analyzed dataset was empty. Some more verbose indication towards this in the frontend would be an improvement.
Most common cause of an empty dataset would be:

• LDES consumer only started recently, wait for it to sync some data before analyzing
• LDES consumer didn't start. (invalid stream url)

screenshot of a successful analysis, but unresponsive accordion caret.