feat(config): message when settings saved

src/app/admin-page.js

@@ -29,7 +29,12 @@ export default class AdminPage extends Page {
   }
   saveSettings() {
     window.torrentSocket.emit('setConfig', this.options)
+    this.settingsSavedMessage = true
     this.forceUpdate()
+    setTimeout(() => {
+      this.settingsSavedMessage = false
+      this.forceUpdate()
+    }, 1000)
   }
   render() {
     return (
@@ -132,6 +137,12 @@ export default class AdminPage extends Page {
           />
         </div>
 
+        {
+          this.settingsSavedMessage
+          &&
+          <div style={{color: 'green'}}>Settings saved</div>
+        }
+
         <div className='row center pad0-75'>
           <RaisedButton label="Save Sttings" primary={true} onClick={() => {
             this.saveSettings()