Clean up usage of QMK_KEYBOARD_H (#20167)

keyboards/keychron/common/keychron_common.c

@@ -14,8 +14,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include QMK_KEYBOARD_H
 #include "keychron_common.h"
+#include "sync_timer.h"
 
 bool is_siri_active = false;
 uint32_t siri_timer = 0;

keyboards/keychron/common/keychron_common.h

@@ -16,10 +16,14 @@
 
 #pragma once
 
-#include "stdint.h"
+#include <stdint.h>
+#include <stdbool.h>
+#include "action.h"
+
 #ifdef VIA_ENABLE
 #    include "via.h"
 #endif
+
 #include "quantum_keycodes.h"
 
 enum custom_keycodes {