[Core] Change OLED task function to be boolean (#14864)

* [Core] Add kb level callbacks to OLED driver

* Update keyboards and keymaps

* Update docs

* Update userspace configs

* Add fix for my keymap ...

* update lefty

keyboards/sofle/keymaps/devdev/keymap.c

@@ -465,12 +465,13 @@ oled_rotation_t oled_init_user(oled_rotation_t rotation) {
     return rotation;
 }
 
-void oled_task_user(void) {
+bool oled_task_user(void) {
     if (is_keyboard_master()) {
         print_status_narrow();
     } else {
         render_logo();
     }
+    return false;
 }
 
 #endif