Convert Encoder callbacks to be boolean functions (#12805)

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

keyboards/ealdin/quadrant/quadrant.c

@@ -17,7 +17,8 @@
 
 
 // Rotary encoder functions:
-__attribute__((weak)) void encoder_update_user(uint8_t index, bool clockwise) {
+bool encoder_update_kb(uint8_t index, bool clockwise) {
+    if (!encoder_update_user(index, clockwise)) return false;
   uint16_t mapped_code = 0;
   if (index == 0) {
     if (clockwise) {
@@ -49,6 +50,7 @@ __attribute__((weak)) void encoder_update_user(uint8_t index, bool clockwise) {
     }
     tap_code(mapped_code);
   }
+    return true;
 }
 
 void keyboard_pre_init_kb(void) {
@@ -63,4 +65,3 @@ bool led_update_kb(led_t led_state) {
     }
     return true;
 }
-