Allows Terminal to use ModTap/LayerTap keys (#4586)

* fixes #4583

* #4583 - terminal also handles layer tap now

quantum/process_keycode/process_terminal.c

@@ -273,11 +273,17 @@ bool process_terminal(uint16_t keycode, keyrecord_t *record) {
             disable_terminal();
             return false;
         }
+
+        if ((keycode >= QK_MOD_TAP && keycode <= QK_MOD_TAP_MAX) || (keycode >= QK_LAYER_TAP && keycode <= QK_LAYER_TAP_MAX)) {
+            keycode = keycode & 0xFF;
+        }
+
         if (keycode < 256) {
             uint8_t str_len;
             char char_to_add;
             switch (keycode) {
                 case KC_ENTER:
+                case KC_KP_ENTER:
                     push_to_cmd_buffer();
                     current_cmd_buffer_pos = 0;
                     process_terminal_command();