[Keymap] community/ortho_4x12/junonum update (#14062)

* Update new community universal keymaps

* Revert bottom row to default for better use of WIN_MODS and MAC_MODS

* Revert to use public domain songs

* Update Dpad layer in junonum to tailor for StarCraft group control

* Remove junonum512

* Update junonum readme

* Define custom songs in the keymap

* Move DP_OFF location

* Update DPAD modifiers

* Update F-row placement in junonum dpad layer

* Update CapsLock location  and rectify KC_APP

layouts/community/ortho_4x12/junonum/config.h

@@ -35,3 +35,6 @@
 
 // Reduce power consumption for iOS compatibility
 #define USB_MAX_POWER_CONSUMPTION 100
+
+// Short tap threshold
+#define TAPPING_TERM 250

layouts/community/ortho_4x12/junonum/keymap.c

@@ -67,7 +67,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     [_RAISE] = LAYOUT_ortho_4x12(
         KC_GRV,  _______, _______, KC_LBRC, KC_RBRC, _______, _______, KC_7,    KC_8,    KC_9,   KC_0,     _______,
         _______, _______, _______, KC_LCBR, KC_RCBR, _______, _______, KC_4,    KC_5,    KC_6,   KC_MINUS, KC_BSLS,
-        _______, _______, _______, _______, _______, _______, _______, KC_1,    KC_2,    KC_3,   KC_EQUAL, _______,
+        _______, _______, _______, _______, _______, _______, _______, KC_1,    KC_2,    KC_3,   KC_EQUAL, KC_ENT,
         _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_VOLD, KC_VOLU, KC_MPLY
     ),
 
@@ -86,8 +86,8 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     ),
 
     [_FN1] = LAYOUT_ortho_4x12(
-        KC_MENU, DP_ON,   KC_PGDN, KC_UP,   KC_PGUP, KC_INS,  _______, KC_PGUP, KC_UP,   KC_PGDN, KC_PSCR, _______,
-        KC_CAPS, _______, KC_LEFT, KC_DOWN, KC_RGHT, KC_HOME, KC_HOME, KC_LEFT, KC_DOWN, KC_RGHT, _______, KC_DEL ,
+        KC_APP,  DP_ON,   KC_PGDN, KC_UP,   KC_PGUP, KC_INS,  KC_CAPS, KC_PGUP, KC_UP,   KC_PGDN, KC_PSCR, _______,
+        _______, _______, KC_LEFT, KC_DOWN, KC_RGHT, KC_HOME, KC_HOME, KC_LEFT, KC_DOWN, KC_RGHT, _______, KC_DEL ,
         _______, _______, _______, _______, _______, KC_END,  KC_END,  _______, KC_VOLD, KC_VOLU, KC_MUTE, _______,
         _______, _______, _______, _______, _______, _______, _______, _______, DP_ON,   _______, _______, _______
     ),