feat: improve Terminal emulator performance

programs/src/klog/main.cpp

@@ -148,6 +148,7 @@ static void klog_handle_mouse(const Montauk::WinEvent& ev) {
 static void klog_cleanup() {
     if (g_klog.term.cells) montauk::free(g_klog.term.cells);
     if (g_klog.term.alt_cells) montauk::free(g_klog.term.alt_cells);
+    if (g_klog.term.render_cells) montauk::free(g_klog.term.render_cells);
     if (g_klog.klog_buf) montauk::mfree(g_klog.klog_buf);
     montauk::memset(&g_klog, 0, sizeof(g_klog));
 }