Move default layouts to data driven (#20349)

keyboards/synapse/synapse.c

@@ -13,7 +13,8 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-#include "synapse.h"
+
+#include "quantum.h"
 
 bool encoder_update_kb(uint8_t index, bool clockwise) {
     if (!encoder_update_user(index, clockwise)) { return false; }