reorder imports, small fixes/formatting changes

[purarue]

reordered imports to be more readable, like:

stdlib third party relative

Used the exist_ok flag on ok.makedirs instead of checking before creating for creating the log directory.

Removed the space between the key kwarg on the max call in emojiexport.py.

[janvernieuwe]

Thanks for taking a look @seanbreckenridge !