[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

2 files changed, 4 insertions, 2 deletions

diff --git a/keyboards/merge/um70/keymaps/default/keymap.c b/keyboards/merge/um70/keymaps/default/keymap.c
index 0a775929d..926f7836a 100644
--- a/keyboards/merge/um70/keymaps/default/keymap.c
+++ b/keyboards/merge/um70/keymaps/default/keymap.c
@@ -169,7 +169,7 @@ static void print_status_narrow(void) {
     // WPM counter End
 }
 
-void oled_task_user(void) {
+bool oled_task_user(void) {
     current_wpm = get_current_wpm();
     if (is_keyboard_master()) {
         print_status_narrow();
@@ -178,6 +178,7 @@ void oled_task_user(void) {
         render_logo();
         //print_status_narrow();
     }
+    return false;
 }
 
 #endif
diff --git a/keyboards/merge/um70/keymaps/via/keymap.c b/keyboards/merge/um70/keymaps/via/keymap.c
index aaf682ffd..f7255eacf 100644
--- a/keyboards/merge/um70/keymaps/via/keymap.c
+++ b/keyboards/merge/um70/keymaps/via/keymap.c
@@ -173,7 +173,7 @@ static void print_status_narrow(void) {
     // WPM counter End
 }
 
-void oled_task_user(void) {
+bool oled_task_user(void) {
     current_wpm = get_current_wpm();
     if (is_keyboard_master()) {
         print_status_narrow();
@@ -182,6 +182,7 @@ void oled_task_user(void) {
         render_logo();
         //print_status_narrow();
     }
+    return false;
 }
 
 #endif