set effects show to false by default

src/main.cpp

@@ -38,7 +38,7 @@ bool loop;
 bool ptnChans = true;
 bool dynamicRoll = true;
 bool ptnOrder = true;
-bool showEffects = true;
+bool showEffects = false;
 std::map<int, char> efxtable;
 std::map<int, bool> efxmemtable;