Open file picker on ctrl+o

Author: GarboMuffin

src/components/menu-bar/menu-bar.jsx

@@ -337,9 +337,14 @@ class MenuBar extends React.Component {
     }
     handleKeyPress (event) {
         const modifier = bowser.mac ? event.metaKey : event.ctrlKey;
-        if (modifier && event.key.toLowerCase() === 's') {
-            this.props.handleSaveProject();
-            event.preventDefault();
+        if (modifier) {
+            if (event.key.toLowerCase() === 's') {
+                this.props.handleSaveProject();
+                event.preventDefault();    
+            } else if (event.key.toLowerCase() === 'o') {
+                event.preventDefault();    
+                this.props.onStartSelectingFileUpload();
+            }
         }
     }
     getSaveToComputerHandler (downloadProjectCallback) {