Fix: ocr command by updating recognitionlangues params

To recognize traditional and simplified Chinese, specify zh-Hant and zh-Hans as the first elements in the request’s recognitionLanguages property. English is the only other language that you can pair with Chinese.
https://developer.apple.com/documentation/vision/original_objective-c_and_swift_api/recognizing_text_in_images

Author: sivagao

commands/system/ocr.swift

@@ -21,7 +21,7 @@ import Cocoa
 import Vision
 
 let screenCapturePath = "/tmp/ocr.png"
-let recognitionLanguages = ["en-US", "zh-CN"]
+let recognitionLanguages = ["zh-Hans", "en-US"]
 let joiner = " "
 
 @discardableResult