Fix keyboard shortcuts not to trigger on AltGr key (#5566)

On Windows when pressing AltGr it will trigger event with same properties as left Ctrl key. Check explicitly that altKey is false otherwise on some keyboard layouts input of special characters is blocked.

webapp/utils/utils.jsx

@@ -32,7 +32,7 @@ export function isMac() {
 }
 
 export function cmdOrCtrlPressed(e) {
-    return (isMac() && e.metaKey) || (!isMac() && e.ctrlKey);
+    return (isMac() && e.metaKey) || (!isMac() && e.ctrlKey && !e.altKey);
 }
 
 export function isInRole(roles, inRole) {