Error handling for synapse 400 errors (and others)

[allaway]

Describe the bug
Tried to apply a manifest with invalid annotation name, synapse returns 400 error causing app to crash.

To Reproduce
This probably only works with admin override, but may also work with non-schema column names which appear to be(?) ignored by the validator. Add a column name (cell lysate is the one that revealed this bug), validate, override, upload to synapse.

Expected behavior
Expect app to not crash, but to pass error along or provide rational explanation for what happened.

Screenshots

Warning: Error in py_call_impl: SynapseHTTPError: 400 Client Error: 
Invalid annotation name: 'cell lysate'. Annotation names may only contain; letters, numbers, '_' and '.'