fix(sticky keys): add 0xFF mask to usage_page

Aligns unpacking of usage_page with its equivalent line in keycode-state-changed.h

PR: #520

app/src/behaviors/behavior_sticky_key.c

@@ -188,7 +188,7 @@ static int sticky_key_keycode_state_changed_listener(const struct zmk_event_head
 
         if (strcmp(sticky_key->config->behavior.behavior_dev, "KEY_PRESS") == 0 &&
             HID_USAGE_ID(sticky_key->param1) == ev->keycode &&
-            HID_USAGE_PAGE(sticky_key->param1) == ev->usage_page &&
+            (HID_USAGE_PAGE(sticky_key->param1) & 0xFF) == ev->usage_page &&
             SELECT_MODS(sticky_key->param1) == ev->implicit_modifiers) {
             // don't catch key down events generated by the sticky key behavior itself
             continue;