- npm: Update devDeps

- Build: Switch to `terser` plugin with `uglify` plugin not
    supporting ES6+-capable minifier
- Linting (ESLint): Consistent curly spacing; follow new "standard"

editor/contextmenu/jQuery.contextMenu.js

@@ -94,7 +94,7 @@ function jQueryContextMenu ($) {
 
               // Show the menu
               doc.unbind('click');
-              menu.css({ top: y, left: x }).fadeIn(o.inSpeed);
+              menu.css({top: y, left: x}).fadeIn(o.inSpeed);
               // Hover events
               menu.find('A').mouseover(function () {
                 menu.find('LI.hover').removeClass('hover');