DolphinQt: Call OnEmulationStateChanged when creating config window panes

Otherwise UI elements won't be disabled correctly if the config
window is first opened while a game is running.

Source/Core/DolphinQt/Settings/AudioPane.cpp

@@ -37,6 +37,8 @@ AudioPane::AudioPane()
   connect(&Settings::Instance(), &Settings::VolumeChanged, this, &AudioPane::OnVolumeChanged);
   connect(&Settings::Instance(), &Settings::EmulationStateChanged, this,
           [=](Core::State state) { OnEmulationStateChanged(state != Core::State::Uninitialized); });
+
+  OnEmulationStateChanged(Core::GetState() != Core::State::Uninitialized);
 }
 
 void AudioPane::CreateWidgets()

Source/Core/DolphinQt/Settings/GeneralPane.cpp

@@ -50,6 +50,8 @@ GeneralPane::GeneralPane(QWidget* parent) : QWidget(parent)
 
   connect(&Settings::Instance(), &Settings::EmulationStateChanged, this,
           &GeneralPane::OnEmulationStateChanged);
+
+  OnEmulationStateChanged(Core::GetState());
 }
 
 void GeneralPane::CreateLayout()

Source/Core/DolphinQt/Settings/WiiPane.cpp

@@ -48,6 +48,7 @@ WiiPane::WiiPane(QWidget* parent) : QWidget(parent)
   LoadConfig();
   ConnectLayout();
   ValidateSelectionState();
+  OnEmulationStateChanged(Core::GetState() != Core::State::Uninitialized);
 }
 
 void WiiPane::CreateLayout()