Feature detection for export downloads is too broad

[testower]

The try/catch surround the feature detection for export downloads masks other errors, e.g. server errors:

This is the feature detection code:

    const isFileSaverSupported = !!new Blob();

The try/catch should wrap only this line of code. Other errors should be handled separately.

Additionally:

• We should not use an alert to display the error message
• The error message should be localized