Add a feature which enables to link between notes

browser/main/StatusBar/StatusBar.styl

@@ -35,6 +35,13 @@
 .update-icon
   color $brand-color
 
+.note-hash
+  display inline
+  line-height 24px
+  padding-left 5px
+  font-size 11px
+  color $ui-button-color
+
 body[data-theme="dark"]
   .root
     background-color $ui-dark-noteDetail-backgroundColor

browser/main/StatusBar/index.js

@@ -48,6 +48,7 @@ class StatusBar extends React.Component {
 
   render () {
     let { config, status } = this.context
+    const { location } = this.props
 
     return (
       <div className='StatusBar'
@@ -60,6 +61,7 @@ class StatusBar extends React.Component {
           {Math.floor(config.zoom * 100)}%
         </button>
 
+        <div styleName='note-hash'>#{location.query.key}</div>
         <div styleName='blank' />
 
         {status.updateReady