Merge branch 'SAN-6186' of https://github.com/CodeNow/runnable-angular into SAN-6186

* 'SAN-6186' of https://github.com/CodeNow/runnable-angular:
  fix spinner alignment in safari

Author: damienrunnable

client/assets/styles/scss/components/buttons/buttons.scss

@@ -44,6 +44,7 @@
   // spinner
   > .spinner-wrapper {
     align-items: center;
+    align-self: center;
     display: flex;
     height: 100%;