Clean-up of `#define _ADJUST 16` instances (#18182)

* enum layer_names: 40percentclub/nori default keymap

* enum layer_names: ergotravel default keymap

* enum layer_names: handwired/atreus50 default keymap

* enum layer_names: handwired/ortho5x13 default keymap

* enum layer_names: keebio/levinson default keymap

* enum layer_names: keebio/nyquist default keymap

* enum layer_names: keebio/rorschach default keymap

* enum layer_names: keebio/viterbi default keymap

* enum layer_names: keebio/wavelet default keymap

* enum layer_names: lets_split default keymap

* enum layer_names: maple_computing/launchpad reference keymaps

Update `default` and `default_rgb` keymaps.

* enum layer_names: maple_computing/minidox default keymap

* enum layer_names: miniaxe reference keymaps

Update `default` and `underglow` keymaps.

* enum layer_names: omkbd/ergodash/mini default keymap

* enum layer_names: omkbd/ergodash/rev1 default keymap

* enum layer_names: orthodox default keymap

* enum layer_names: unikeyboard/divergetm2 default keymap

* enum layer_names: woodkeys/scarletbandana default keymap

* add _Static_assert to keymap_introspection.c

5 files changed, 36 insertions, 26 deletions

diff --git a/keyboards/keebio/levinson/keymaps/default/keymap.c b/keyboards/keebio/levinson/keymaps/default/keymap.c
index ed4c7243d1..72da4addc3 100644
--- a/keyboards/keebio/levinson/keymaps/default/keymap.c
+++ b/keyboards/keebio/levinson/keymaps/default/keymap.c
@@ -5,12 +5,14 @@
 // The underscores don't mean anything - you can have a layer called STUFF or any other name.
 // Layer names don't all need to be of the same length, obviously, and you can also skip them
 // entirely and just use numbers.
-#define _QWERTY 0
-#define _COLEMAK 1
-#define _DVORAK 2
-#define _LOWER 3
-#define _RAISE 4
-#define _ADJUST 16
+enum layer_names {
+    _QWERTY,
+    _COLEMAK,
+    _DVORAK,
+    _LOWER,
+    _RAISE,
+    _ADJUST
+};
 
 enum custom_keycodes {
   QWERTY = SAFE_RANGE,
diff --git a/keyboards/keebio/nyquist/keymaps/default/keymap.c b/keyboards/keebio/nyquist/keymaps/default/keymap.c
index 03de74a80d..a06cde9555 100644
--- a/keyboards/keebio/nyquist/keymaps/default/keymap.c
+++ b/keyboards/keebio/nyquist/keymaps/default/keymap.c
@@ -5,12 +5,14 @@
 // The underscores don't mean anything - you can have a layer called STUFF or any other name.
 // Layer names don't all need to be of the same length, obviously, and you can also skip them
 // entirely and just use numbers.
-#define _QWERTY 0
-#define _COLEMAK 1
-#define _DVORAK 2
-#define _LOWER 3
-#define _RAISE 4
-#define _ADJUST 16
+enum layer_names {
+    _QWERTY,
+    _COLEMAK,
+    _DVORAK,
+    _LOWER,
+    _RAISE,
+    _ADJUST
+};
 
 enum custom_keycodes {
   QWERTY = SAFE_RANGE,
diff --git a/keyboards/keebio/rorschach/keymaps/default/keymap.c b/keyboards/keebio/rorschach/keymaps/default/keymap.c
index 00f2a9cffb..c1efce8f2b 100644
--- a/keyboards/keebio/rorschach/keymaps/default/keymap.c
+++ b/keyboards/keebio/rorschach/keymaps/default/keymap.c
@@ -1,10 +1,12 @@
 #include QMK_KEYBOARD_H
 
 
-#define _QWERTY 0
-#define _LOWER 1
-#define _RAISE 2
-#define _ADJUST 16
+enum layer_names {
+    _QWERTY,
+    _LOWER,
+    _RAISE,
+    _ADJUST
+};
 
 #define LOWER MO(_LOWER)
 #define RAISE MO(_RAISE)
diff --git a/keyboards/keebio/viterbi/keymaps/default/keymap.c b/keyboards/keebio/viterbi/keymaps/default/keymap.c
index 1db80b7452..d23ebe6797 100644
--- a/keyboards/keebio/viterbi/keymaps/default/keymap.c
+++ b/keyboards/keebio/viterbi/keymaps/default/keymap.c
@@ -5,10 +5,12 @@
 // The underscores don't mean anything - you can have a layer called STUFF or any other name.
 // Layer names don't all need to be of the same length, obviously, and you can also skip them
 // entirely and just use numbers.
-#define _QWERTY 0
-#define _LOWER 1
-#define _RAISE 2
-#define _ADJUST 16
+enum layer_names {
+    _QWERTY,
+    _LOWER,
+    _RAISE,
+    _ADJUST
+};
 
 enum custom_keycodes {
   QWERTY = SAFE_RANGE,
diff --git a/keyboards/keebio/wavelet/keymaps/default/keymap.c b/keyboards/keebio/wavelet/keymaps/default/keymap.c
index ed4c7243d1..72da4addc3 100644
--- a/keyboards/keebio/wavelet/keymaps/default/keymap.c
+++ b/keyboards/keebio/wavelet/keymaps/default/keymap.c
@@ -5,12 +5,14 @@
 // The underscores don't mean anything - you can have a layer called STUFF or any other name.
 // Layer names don't all need to be of the same length, obviously, and you can also skip them
 // entirely and just use numbers.
-#define _QWERTY 0
-#define _COLEMAK 1
-#define _DVORAK 2
-#define _LOWER 3
-#define _RAISE 4
-#define _ADJUST 16
+enum layer_names {
+    _QWERTY,
+    _COLEMAK,
+    _DVORAK,
+    _LOWER,
+    _RAISE,
+    _ADJUST
+};
 
 enum custom_keycodes {
   QWERTY = SAFE_RANGE,