title: 'init(systemName:)' is unavailable in macOS
body: <p>I would like to use SF Symbols in my macOS project. How to implement one?</p>
  
  <pre class="lang-swift prettyprint-override"><code>Button(action: {}) {
    Image(systemName: "star") //Error: 'init(systemName:)' is unavailable in macOS            
  }
  </code></pre>