Small Speedrun Mode Cleanups (#2179)

* Deduplicate Speedrun Overrides

Avoids issues where only one is updated + makes sense organizationally

* Move restore_from_speedrun_mode

I think it makes more sense to have this in the same place the overrides are set

* Camelcase nit

---------

Co-authored-by: Irastris <irastris15@gmail.com>

src/dusk/speedrun.cpp

@@ -1,5 +1,6 @@
 #include "dusk/speedrun.h"
 #include "dusk/settings.h"
+#include "dusk/config.hpp"
 #include "m_Do/m_Do_main.h"
 #include <aurora/aurora.h>
 
@@ -43,4 +44,15 @@ void resetForSpeedrunMode() {
     getSettings().game.debugFlyCam.setSpeedrunValue(false);
 }
 
+static void clearSpeedrunOverrides() {
+    config::EnumerateRegistered([](config::ConfigVarBase& cvar) {
+        cvar.clearSpeedrunOverride();
+    });
+}
+
+void restoreFromSpeedrunMode() {
+    clearSpeedrunOverrides();
+    aurora_set_pause_on_focus_lost(getSettings().game.pauseOnFocusLost.getValue());
+}
+
 }  // namespace dusk