Improve error report when opening weird files

[squalou]

Hi,

first thank you a lot for this tool, I've bee using it with a fairly big file without issue.

The other day I had to open a file that was badly encoded, easy to fix provided the error is displayed.

As of today, TAD doesn't say anything when it happens.

Error is hidden in console, here's what it looks like :

  errno: -1,
  code: 'DUCKDB_NODEJS_ERROR',
  errorType: 'Invalid Input'
} Error: Invalid Input Error: Error in file "/home/xxxx/123456.csv" at line 0: Invalid unicode (byte sequence mismatch) detected in CSV file. Parser options:
  file=/home/xxxx/123456.csv
  

Clearly the file is at fault and I would never ask for a support for it,
all I would like is an error popup in such situations, that would be a great improvement.

Thx again !