Overlay: I forgot about pop_document()

This in turn fixes a bug that I was about to bother encounter about, smh

src/dusk/ui/overlay.cpp

@@ -135,8 +135,7 @@ Overlay::Overlay(OverlayProps props)
     : Document("res/rml/overlay.rml"),
       mOption(props.option),
       mValueMin(props.valueMin),
-      mValueMax(props.valueMax),
-      mOpenerDocument(props.openerDocument) {
+      mValueMax(props.valueMax) {
     if (mDocument == nullptr) {
         return;
     }
@@ -216,10 +215,7 @@ void Overlay::dismiss() {
         return;
     }
     mDismissed = true;
-    if (mOpenerDocument != nullptr) {
-        mOpenerDocument->Show();
-    }
-    hide();
+    pop_document();
 }
 
 void Overlay::reset_default() {

src/dusk/ui/overlay.hpp

@@ -50,7 +50,6 @@ struct OverlayProps {
     Rml::String helpText;
     int valueMin = 0;
     int valueMax = 0;
-    Rml::ElementDocument* openerDocument = nullptr;
 };
 
 class Overlay : public Document {
@@ -78,7 +77,6 @@ private:
     GraphicsOption mOption;
     int mValueMin = 0;
     int mValueMax = 0;
-    Rml::ElementDocument* mOpenerDocument = nullptr;
     std::vector<std::unique_ptr<Component> > mComponents;
     bool mDismissed = false;
 };

src/dusk/ui/settings.cpp

@@ -214,17 +214,12 @@ protected:
 
 private:
     void open_overlay() {
-        auto* openerDocument = mRoot != nullptr ? mRoot->GetOwnerDocument() : nullptr;
-        if (openerDocument != nullptr) {
-            openerDocument->Hide();
-        }
-        auto& overlay = push_document(std::make_unique<Overlay>(OverlayProps{
+        push_document(std::make_unique<Overlay>(OverlayProps{
             .option = mOption,
             .title = mTitle,
             .helpText = mHelpText,
             .valueMin = mValueMin,
             .valueMax = mValueMax,
-            .openerDocument = openerDocument,
         }));
     }