Update Data View Table

[ctreffe]

Currently, the data view has two major limitations:

1. It will only show the first 30 datasets. The Show X entries setting in the upper left corner of the data table is not functioning.

2. The data view will only show variables present in early experiment versions. If you add variables and change the experiment version. The data view will display datasets of the new version, but the added variables are not shown. Maybe this can be resolved by allowing users to display data of certain experiment versions, but maybe there is an even better way to achieve a complete display of the available data.