added mac automator workflow
Created by: FishyFing
Allows running natively as a service on mac.
Unzip the workflow file. To run, open the workflow file and install it. Then, go to System Preferences > Keyboard > Shortcuts > Services. Scroll down and you should see "owo-uploader" under general (https://owo.whats-th.is/c0a68d.png). Set a shortcut for it, and (optionally) turn off the default screenshot options (https://owo.whats-th.is/281d87.png)