Add share loading symbol

src/styles/global.css

@@ -895,6 +895,10 @@ main.has-project {
 	cursor: pointer;
 }
 
+.popup-action.loading > svg {
+	animation: 2s linear spinning infinite;
+}
+
 .popup-actions.right-actions {
 	left: 100%;
 	padding-right: 16px;