Add an option for making cycle changes persistent

quantum/process_keycode/process_unicode_common.c

@@ -65,6 +65,9 @@ void cycle_unicode_input_mode(void) {
   unicode_input_mode_init(); // Init selected_index
   selected_index = (selected_index + 1) % selected_count;
   input_mode = selected[selected_index];
+# if UNICODE_CYCLE_PERSIST
+  eeprom_update_byte(EECONFIG_UNICODEMODE, input_mode);
+# endif
 #endif
 }
 

quantum/process_keycode/process_unicode_common.h

@@ -25,6 +25,11 @@
 #define UNICODE_SELECTED_MODES -1
 #endif
 
+// Whether input mode changes in cycle should be written to EEPROM
+#ifndef UNICODE_CYCLE_PERSIST
+#define UNICODE_CYCLE_PERSIST true
+#endif
+
 #ifndef UNICODE_TYPE_DELAY
 #define UNICODE_TYPE_DELAY 10
 #endif