Upgrade to latest React 16 (16.14.0), fix problems found when doing so.

bemani/frontend/static/controllers/arcade/arcade.react.js

@@ -105,7 +105,7 @@ var arcade_management = createReactClass({
         event.preventDefault();
     },
 
-    togglePaseliEnabled: function(event) {
+    togglePaseliEnabled: function() {
         this.setState({paseli_enabled_saving: true})
         AJAX.post(
             Link.get('paseli_enabled'),
@@ -117,10 +117,9 @@ var arcade_management = createReactClass({
                 });
             }.bind(this)
         );
-        event.preventDefault();
     },
 
-    togglePaseliInfinite: function(event) {
+    togglePaseliInfinite: function() {
         this.setState({paseli_infinite_saving: true})
         AJAX.post(
             Link.get('paseli_infinite'),
@@ -132,10 +131,9 @@ var arcade_management = createReactClass({
                 });
             }.bind(this)
         );
-        event.preventDefault();
     },
 
-    toggleMaskServicesURL: function(event) {
+    toggleMaskServicesURL: function() {
         this.setState({mask_services_url_saving: true})
         AJAX.post(
             Link.get('mask_services_url'),
@@ -147,7 +145,6 @@ var arcade_management = createReactClass({
                 });
             }.bind(this)
         );
-        event.preventDefault();
     },
 
     addBalance: function(event) {

bemani/frontend/static/controllers/ddr/settings.react.js

@@ -82,7 +82,7 @@ var settings_view = createReactClass({
         event.preventDefault();
     },
 
-    toggleEarlyLate: function(event) {
+    toggleEarlyLate: function() {
         this.setState({saving_early_late: true})
         AJAX.post(
             Link.get('updateearlylate'),
@@ -99,10 +99,9 @@ var settings_view = createReactClass({
                 });
             }.bind(this)
         );
-        event.preventDefault();
     },
 
-    toggleBackgroundCombo: function(event) {
+    toggleBackgroundCombo: function() {
         this.setState({saving_background_combo: true})
         AJAX.post(
             Link.get('updatebackgroundcombo'),
@@ -119,7 +118,6 @@ var settings_view = createReactClass({
                 });
             }.bind(this)
         );
-        event.preventDefault();
     },
 
     saveName: function(event) {

bemani/frontend/static/themes/dark/site.css

@@ -54,6 +54,14 @@ div.navigation {
     }
 }
 
+@media only screen and (min-width: 600px) {
+    div.jconfirm-box-container {
+        margin-left: 25%;
+        margin-right: 25%;
+        width: 50%;
+    }
+}
+
 @media only screen and (hover: none) {
     .tinynav {
         display: inline-block;

bemani/frontend/static/themes/default/site.css

@@ -48,6 +48,14 @@ div.navigation {
     }
 }
 
+@media only screen and (min-width: 600px) {
+    div.jconfirm-box-container {
+        margin-left: 25%;
+        margin-right: 25%;
+        width: 50%;
+    }
+}
+
 @media only screen and (hover: none) {
     .tinynav {
         display: inline-block;