Trying to use the batch visualisation page on batches for PVNet UK crashes the page

[Sukh-P]

Describe the bug

If you try to use the batch visualisation page on batches for PVNet UK it crashes the whole dashboard

This is most likely due to the size of the batch or perhaps another bug, the batches are ~500MB. We should have a warning of max batch size or avoid this some other way.

[Sukh-P]

Related to #337