[Keyboard] Fixes to make snes_macropad play nicer with qmk configurator (#22432)

* [Keyboard] Change default implementation for get_layer_name_user

Will now show the layer number instead of "Unknown", since this is
what will be shown if QMK Configurator is used to compile the
firmware.

* [Keyboard] Update the layout info

This makes it look sort of like a macropad + gamepad rather than an 4x6
ortholinear keyboard.

* [Keyboard] Fix default implementation of get_layer_name_user

Based on feedback from code review the implementation was swapped in
favor of using get_u8_str. This implied a change to the argument type
from int to uint8_t, which cascaded into the existing keymaps. (This
made sense in general, since the return type of get_highest_layer is
also a uint8_t.)

keyboards/snes_macropad/info.json

@@ -45,18 +45,18 @@
                 {"matrix": [2, 2], "x": 2, "y": 2},
                 {"matrix": [2, 3], "x": 3, "y": 2},
 
-                {"matrix": [3, 0], "x": 0, "y": 3},
-                {"matrix": [3, 1], "x": 1, "y": 3},
-                {"matrix": [3, 2], "x": 2, "y": 3},
-                {"matrix": [3, 3], "x": 3, "y": 3},
-                {"matrix": [4, 0], "x": 0, "y": 4},
-                {"matrix": [4, 1], "x": 1, "y": 4},
-                {"matrix": [4, 2], "x": 2, "y": 4},
-                {"matrix": [4, 3], "x": 3, "y": 4},
-                {"matrix": [5, 0], "x": 0, "y": 5},
-                {"matrix": [5, 1], "x": 1, "y": 5},
-                {"matrix": [5, 2], "x": 2, "y": 5},
-                {"matrix": [5, 3], "x": 3, "y": 5}
+                {"matrix": [3, 0], "x": 5.2, "y": 0, "w": 2, "h": 0.75},
+                {"matrix": [3, 1], "x": 10.65, "y": 0, "w": 2, "h": 0.75},
+                {"matrix": [3, 2], "x": 7.9, "y": 2.5, "w": 1, "h": 0.75},
+                {"matrix": [3, 3], "x": 8.9, "y": 2.5, "w": 1, "h": 0.75},
+                {"matrix": [4, 0], "x": 6, "y": 1, "w": 0.85, "h": 0.85},
+                {"matrix": [4, 1], "x": 6, "y": 3, "w": 0.85, "h": 0.85},
+                {"matrix": [4, 2], "x": 5.2, "y": 2, "w": 0.85, "h": 0.85},
+                {"matrix": [4, 3], "x": 6.8, "y": 2, "w": 0.85, "h": 0.85},
+                {"matrix": [5, 0], "x": 11.8, "y": 2, "w": 0.85, "h": 0.85},
+                {"matrix": [5, 1], "x": 11, "y": 3, "w": 0.85, "h": 0.85},
+                {"matrix": [5, 2], "x": 11, "y": 1, "w": 0.85, "h": 0.85},
+                {"matrix": [5, 3], "x": 10.2, "y": 2, "w": 0.85, "h": 0.85}
             ]
         }
     },

keyboards/snes_macropad/keymaps/default/keymap.c

@@ -61,7 +61,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 // clang-format on
 
-const char* get_layer_name_user(int layer) {
+const char* get_layer_name_user(uint8_t layer) {
     switch (layer) {
         case L_Numpad:
             return "Numpad";

keyboards/snes_macropad/keymaps/jbarberu/keymap.c

@@ -81,7 +81,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 // clang-format on
 
-const char * get_layer_name_user(int layer) {
+const char * get_layer_name_user(uint8_t layer) {
     switch (layer) {
         case L_Numpad:
             return "Numpad";

keyboards/snes_macropad/keymaps/test/keymap.c

@@ -61,7 +61,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 // clang-format on
 
-const char * get_layer_name_user(int layer) {
+const char * get_layer_name_user(uint8_t layer) {
     switch (layer) {
         case L_Numpad:
             return "Numpad";

keyboards/snes_macropad/snes_macropad.c

@@ -57,8 +57,8 @@ static void oled_render_keylog(void) {
     oled_write_char(key_name, false);
 }
 
-__attribute__((weak)) const char * get_layer_name_user(int layer) {
-    return "Unknown";
+__attribute__((weak)) const char * get_layer_name_user(uint8_t layer) {
+    return get_u8_str(layer, ' ');
 }
 
 static void oled_render_layer(void) {