Fix ctrl or win interfering with character inputs (#149)

* Fix ctrl or win interfering with character inputs

* condition on mac_cmd to check for problematic hotkeys

* apply suggested logic

src/systems.rs

@@ -210,7 +210,7 @@ pub fn process_input_system(
         }
     }
 
-    if !ctrl && !win {
+    if !command || cfg!(target_os = "windows") && ctrl && alt {
         for event in input_events.ev_received_character.iter() {
             if !event.char.is_control() {
                 let mut context = context_params.contexts.get_mut(event.window).unwrap();