Theming: Fix message/loading display on errors

Signed-off-by: Julius Härtl <jus@bitgrid.net>

apps/theming/css/settings-admin.css

@@ -78,6 +78,7 @@ form.uploadButton {
 
 #theming_settings_msg {
     vertical-align: middle;
+    border-radius: 3px;
 }
 
 #theming-preview-logo {

apps/theming/js/settings-admin.js

@@ -141,6 +141,7 @@ $(document).ready(function () {
 		fail: function (e, response){
 			OC.msg.finishedError('#theming_settings_msg', response._response.jqXHR.responseJSON.data.message);
 			$('label#uploadlogo').addClass('icon-upload').removeClass('icon-loading-small');
+			$('#theming_settings_loading').hide();
 		}
 	};
 	var uploadParamsLogin = {
@@ -159,6 +160,7 @@ $(document).ready(function () {
 		fail: function (e, response){
 			$('label#upload-login-background').removeClass('icon-loading-small').addClass('icon-upload');
 			OC.msg.finishedError('#theming_settings_msg', response._response.jqXHR.responseJSON.data.message);
+			$('#theming_settings_loading').hide();
 		}
 	};