[REQ] Order in ZIP not equal to order in MacOS Finder

### Configuration
- Keka version: 1.2.16 (4617)
- macOS version: 10.14.6 (18G9216)

### Describe the bug
Order in ZIP not equal to order in MacOS Finder.

### To Reproduce
Steps to reproduce the behavior:
1. Create 3 files, e.g. `My File 9.pdf` / `My File 10.pdf` / `My File 11.pdf`
2. In the finder, I sort by name and the files correctly show up sorted, starting with 9, ending with 11
3. I drag the 3 files onto the Keka, the ZIP gets created.
4. When I check the ZIP content, the 9-file is the last, instead of the first one. (I used `unzip -vl Archive.zip` to verify the order in the ZIP)

### Expected behavior
I need KeKa to sort like finder shows the files.