macosx: fix space hotkey for audio files (close #8818)

modules/gui/macosx/StringUtility.m

@@ -311,6 +311,8 @@ unsigned int CocoaKeyToVLC(unichar i_key)
             return [NSString stringWithFormat:@"%C", NSF2FunctionKey];
         else if ([theString rangeOfString:@"F1"].location != NSNotFound)
             return [NSString stringWithFormat:@"%C", NSF1FunctionKey];
+        else if ([theString rangeOfString:@"Space"].location != NSNotFound)
+            return @" ";
         /* note that we don't support esc here, since it is reserved for leaving fullscreen */
     }
 #ifdef __clang__

modules/gui/macosx/controls.m

@@ -193,10 +193,6 @@
                             eventHandled = YES;
                         }
                     }
-                    else if (key == ' ') {
-                        [self play:self];
-                        eventHandled = YES;
-                    }
                     vlc_object_release(p_vout);
                 }
                 vlc_object_release(p_input);