fix: setted UTF-8 charset for codes

mobile/src/main/java/ru/omni_devel/cards/Utils.kt

@@ -5,6 +5,7 @@ import android.graphics.Bitmap
 import android.os.LocaleList
 import com.google.android.gms.wearable.Wearable
 import com.google.zxing.BarcodeFormat
+import com.google.zxing.EncodeHintType
 import com.google.zxing.MultiFormatWriter
 import com.journeyapps.barcodescanner.BarcodeEncoder
 
@@ -16,7 +17,11 @@ fun generateCode(value: String, format: BarcodeFormat): Bitmap {
         else -> 800 to 400
     }
 
-    val matrix = writer.encode(value, format, width, height)
+    val hints = mapOf(
+        EncodeHintType.CHARACTER_SET to "UTF-8"
+    )
+
+    val matrix = writer.encode(value, format, width, height, hints)
 
     return BarcodeEncoder().createBitmap(matrix)
 }