File.append
File.append($filePath, $dataListOrString) -> false
Description
Append the given data to the end of a file.
If the file does not already exist, it will be created.
The $filePath is relative to the data/files directory.
If the data is a List, it will be joined by newlines \n.
File.append('file.txt', 'some line')
File.append('file.txt', ['line1', 'line2', 'line3'])