Version v0.3.29 - Update versioning system

src/ui.c

@@ -120,7 +120,9 @@ int interactive_mode(void) {
 
 void show_main_menu(void) {
     printf("\n");
-    print_centered_header("Main Menu - OTP v0.3.16", 0);
+    char header[64];
+    snprintf(header, sizeof(header), "Main Menu - OTP %s", OTP_VERSION);
+    print_centered_header(header, 0);
     printf("\n");
 
     printf(" \033[4mT\033[0mext encrypt\n");    //TEXT ENCRYPT