Add select text on click

add (again?) select text on click
- device ID
- remote device ID
- API key

gui/syncthing/device/idqrModalView.html

@@ -1,4 +1,4 @@
 <modal id="idqr" status="info" icon="qrcode" title="{{'Device Identification' | translate}} - {{deviceName(thisDevice())}}" large="yes" close="yes">
-  <div class="well well-sm text-monospace text-center">{{myID}}</div>
+  <div class="well well-sm text-monospace text-center" select-on-click>{{myID}}</div>
   <img ng-if="myID" class="center-block img-thumbnail" ng-src="qr/?text={{myID}}"/>
 </modal>