Refresh the LEDs when palette or theme changes via Focus

When a Focus command changes either the palette, or the theme, call
`LEDControl.refreshAll()` to repaint the LEDs. This way we don't have to force a
repaint some other way, and changes take effect immediately, as they should.

Fixes #8.

Signed-off-by: Gergely Nagy <algernon@keyboard.io>

src/Kaleidoscope/LED-Palette-Theme.cpp

@@ -125,6 +125,8 @@ EventHandlerResult LEDPaletteTheme::onFocusEvent(const char *command) {
     i++;
   }
 
+  ::LEDControl.refreshAll();
+
   return EventHandlerResult::EVENT_CONSUMED;
 }
 
@@ -164,6 +166,8 @@ EventHandlerResult LEDPaletteTheme::themeFocusEvent(const char *command,
     pos++;
   }
 
+  ::LEDControl.refreshAll();
+
   return EventHandlerResult::EVENT_CONSUMED;
 }