Convert Encoder callbacks to be boolean functions (#12805)

Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com>

layouts/community/ortho_4x12/buswerks/keymap.c

@@ -142,7 +142,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
     return true;
 }
 
-void encoder_update(bool clockwise) {
+bool encoder_update_user(uint8_t index, bool clockwise) {
     if (IS_LAYER_ON(_RAISE) || IS_LAYER_ON(_LOWER)) {
         if (clockwise) {
             register_code(KC_VOLU);
@@ -170,6 +170,5 @@ void encoder_update(bool clockwise) {
             #endif
         }
     }
+    return true;
 }
-
-