Describe the bug

Lines with non-ascii characters seems to be skipped when importing data from a CSV.

To Reproduce

1. Create a CSV named "Person.csv"
   ```csv
   name,age
   Alice,17
   Bob,30
   Kræn,30
   Charlie,65
   Gäää,10
   ```
2. Go to "File" → "Create Realm from" → "csv".
3. Select the "Person.csv"
4. See how only Alice, Bob and Charlie makes it into the final Realm file.

Expected behavior
All five rows should get imported.

Versions:

• OS: Mac (probably N/A)
• Studio Version 3.8.1
• Realm Object Server version N/A

Additional context
I found this trying to reproduce another issue with importing non-ascii characters: https://forum.realm.io/t/realm-studio-not-importing-diacritics-from-csv-file/2933

See the data importer source-code:
https://github.com/realm/realm-studio/blob/master/src/services/data-importer/csv/CSVDataImporter.ts