[Feature request] In specuploadprocessor, don't show entire error string when data too long for a field

[themerekat]

Problem
When importing data from another source, sometimes their data is too long for our fields (specifically, their footprintWKT values, in this example). When this error prints out, it prints the entire length of the error. Compounded over hundreds of specimens, this eats up my browser memory and prevents me from actually finishing the upload.

Possible solution
Show a truncated error message that doesn't show the entire error string