[Keymap] ANAVI Macro Pad 8 fix kodi and default (#10727)

Improvements and bug fixes for the keymaps kodi and default for
ANAVI Macro Pad 8:

- Add space to the end of string "Active layer: " for better
  visibility on the mini I2C OLED display for both keymaps
- Replace "Main" with "Kodi" for the Kodi keymap
- Add comment with reference to Kodi documentation for the
  available shortcuts in this keymap

Signed-off-by: Leon Anavi <leon@anavi.org>

keyboards/anavi/macropad8/keymaps/default/keymap.c

@@ -25,7 +25,7 @@ oled_rotation_t oled_init_user(oled_rotation_t rotation) {
 void oled_task_user(void) {
   // Host Keyboard Layer Status
   oled_write_ln_P(PSTR("ANAVI Macro Pad 8"), false);
-  oled_write_P(PSTR("Active layer:"), false);
+  oled_write_P(PSTR("Active layer: "), false);
 
   switch (get_highest_layer(layer_state)) {
     case _MAIN:

keyboards/anavi/macropad8/keymaps/kodi/keymap.c

@@ -12,6 +12,18 @@ const uint8_t RGBLED_RAINBOW_MOOD_INTERVALS[] PROGMEM = {60, 30, 15};
 const uint8_t RGBLED_RAINBOW_SWIRL_INTERVALS[] PROGMEM = {20, 10, 4};
 #endif
 
+/**
+ * Kodi shortcuts:
+ *
+ * ESC - Previous menu OR Home screen
+ * Enter - Select
+ * X - Stop
+ * Arrows to move
+ *
+ * For details have a look at:
+ * https://kodi.wiki/view/Keyboard_controls
+ */
+
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   [_MAIN] = LAYOUT_ortho_2x4(
      KC_ESC, KC_UP, KC_ENTER, KC_X,
@@ -32,11 +44,11 @@ oled_rotation_t oled_init_user(oled_rotation_t rotation) {
 void oled_task_user(void) {
   // Host Keyboard Layer Status
   oled_write_ln_P(PSTR("ANAVI Macro Pad 8"), false);
-  oled_write_P(PSTR("Active layer:"), false);
+  oled_write_P(PSTR("Active layer: "), false);
 
   switch (get_highest_layer(layer_state)) {
     case _MAIN:
-      oled_write_ln_P(PSTR("Main"), false);
+      oled_write_ln_P(PSTR("Kodi"), false);
       break;
     case _FN:
       oled_write_ln_P(PSTR("FN"), false);