Small Improvements (German is hard...)

✏️ Changes

• #2: parse_number will now handle inputs that are integers already. Thanks for the suggestion @tobbexiv!
  • This means that you can put the output of your speech-to-text engine directly into the macro and don't have to worry about whether the spoken number was interpreted as digits or text.

🐛 Fixes

• #3: The phrase 'Milliarde' will be recognized correctly now.