voiceCommand that contains no string should be removed

[FrankElias77]

Bug Report

When a voice command contains no strings, it should not be sent in an update

Reproduction Steps

1. voiceCommandA = ["Test 1"];
2. voiceCommandB = [];
3. Upload voiceCommands

Expected Behavior

currentVoiceCommands = [voiceCommandA];

Observed Behavior

currentVoiceCommands = [voiceCommandA, voiceCommandB];