Fix unique key prop warnings

Author: jhen0409

frontend/Panel.js

@@ -284,10 +284,10 @@ Panel.childContextTypes = {
 var panelRNStyle = bridge => (node, id) => {
  var props = node.get('props');
  if (!props || !props.style) {
- return <strong>No style</strong>;
+ return <strong key="rnstyle">No style</strong>;
  }
  return (
- <div>
+ <div key="rnstyle">
  <h3>React Native Style Editor</h3>
  <NativeStyler id={id} bridge={bridge} />
  </div>

plugins/ReactNativeStyle/StyleEdit.js

@@ -47,7 +47,7 @@ class StyleEdit extends React.Component {
  return (
  <ul style={styles.container}>
  {attrs.map(name => (
- <li style={styles.attr}>
+ <li key={'style-' + name} style={styles.attr}>
  <BlurInput
  value={name}
  onChange={newName => this.props.onRename(name, '' + newName, this.props.style[name])}