[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/lily58/keymaps/cykedev/keymap.c

@@ -114,8 +114,8 @@ oled_rotation_t oled_init_user(oled_rotation_t rotation) {
 
 const char *read_logo(void);
 
-void oled_task_user(void) {
+bool oled_task_user(void) {
   oled_write_ln(read_logo(), false);
+    return false;
 }
 #endif // OLED_ENABLE
-