UI Upload batch size limit

[sroosa]

Description

As an ingester, I can upload batches up to 750MB through the UI. If my file exceeds that size limit, I get a message telling me how to alternatively upload my batch.

A waiting time of up to 30 seconds or so is fine.

Done Looks Like:

• User uploads a batch smaller than 750MB and it gets accepted.
• User uploads a batch larger than 750MB and they get a message that gives them an alternative way to upload.
• 750 MB is the default, and this value is able to be changed within the batch ingest yaml config file