gui: Fix icons in pause / resume all buttons (fixes #4003)

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4004

gui/default/index.html

@@ -438,10 +438,10 @@
         </div>
         <span class="pull-right">
           <button type="button" class="btn btn-sm btn-default" ng-click="setAllFoldersPause(true)" ng-if="isAtleastOneFolderPausedStateSetTo(false)">
-            <span class="fa fa-refresh"></span>&nbsp;<span translate>Pause All</span>
+            <span class="fa fa-pause"></span>&nbsp;<span translate>Pause All</span>
           </button>
           <button type="button" class="btn btn-sm btn-default" ng-click="setAllFoldersPause(false)" ng-if="isAtleastOneFolderPausedStateSetTo(true)">
-            <span class="fa fa-refresh"></span>&nbsp;<span translate>Resume All</span>
+            <span class="fa fa-play"></span>&nbsp;<span translate>Resume All</span>
           </button>
           <button type="button" class="btn btn-sm btn-default" ng-click="rescanAllFolders()">
             <span class="fa fa-refresh"></span>&nbsp;<span translate>Rescan All</span>