message: change window title (mac)
diff: <subviews>
  <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="Wfb-M9-ix6">
  <rect key="frame" x="185" y="3" width="42" height="16"/>
  - <textFieldCell key="cell" lineBreakMode="clipping" alignment="center" title="Toggl" id="w7a-dF-DEb">
  + <textFieldCell key="cell" lineBreakMode="clipping" alignment="center" title="Toggl Track" id="w7a-dF-DEb">
  <font key="font" usesAppearanceFont="YES"/>
  <color key="textColor" name="labelColor" catalog="System" colorSpace="catalog"/>
  <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
  