Remove legacy keycodes, part 2 (#18660)

* `KC_SYSREQ` -> `KC_SYRQ`

And one `KC_ALT_ERASE` -> `KC_ERAS`

* `KC_NONUS_BSLASH` -> `KC_NUBS`

* `KC_NUMLOCK` -> `KC_NUM`

* `KC_CLCK` -> `KC_CAPS`

* `KC_SCROLLLOCK` -> `KC_SCRL`

* `KC_LBRACKET` -> `KC_LBRC`

* `KC_RBRACKET` -> `KC_RBRC`

* `KC_CAPSLOCK` -> `KC_CAPS`

layouts/community/ortho_4x4/jotix/keymap.c

@@ -47,7 +47,7 @@ layer_state_t layer_state_set_user(layer_state_t state) {
 bool led_update_user(led_t led_state) {
   // NumLock allways on
   if (!led_state.num_lock) {
-    tap_code(KC_NUMLOCK);
+    tap_code(KC_NUM_LOCK);
   }
   return true;
 }