[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/boardsource/holiday/spooky/keymaps/rip_mx/keymap.c

@@ -71,8 +71,9 @@ static void render_RIP(void) {
   oled_write_raw_P(my_logo, sizeof(my_logo));
 }
 
-void oled_task_user(void) {
+bool oled_task_user(void) {
   render_RIP();
+    return false;
   }
 
 #endif

keyboards/boardsource/holiday/spooky/keymaps/rip_my_wallet/keymap.c

@@ -71,8 +71,9 @@ static void render_RIP(void) {
   oled_write_raw_P(my_logo, sizeof(my_logo));
 }
 
-void oled_task_user(void) {
+bool oled_task_user(void) {
   render_RIP();
+    return false;
   }
 
 #endif