Show a message if loading participants has failed

[nivemaham]

Currently, the user is not informed if loading participants has failed. This should be added to the UI.
const patientList = await patientAPI.filteredPatients(projectId).catch(() => ([]));
The catch should print the error and show a message to the user, similar to what we do when file upload failes

[khoathanglong]

Currently all GET requests are expected not to fail. I have not implemented any catch on these case since I need more specific requirement for handling get fail not just participants but sourceTypes, files, records...
I suggest to move this in milestone 3 as an improvement. Since the table also said 'no data found' if get participants fails.