ModuleBrowser moves to mouse position

include/ui.hpp

@@ -188,6 +188,7 @@ struct ScrollWidget : OpaqueWidget {
 	void step() override;
 	void onMouseMove(EventMouseMove &e) override;
 	void onScroll(EventScroll &e) override;
+	void onHoverKey(EventHoverKey &e) override;
 };
 
 struct TextField : OpaqueWidget {

src/app/ModuleBrowser.cpp

@@ -413,7 +413,6 @@ struct ModuleBrowser : OpaqueWidget {
 	}
 
 	void step() override {
-		box.pos = parent->box.size.minus(box.size).div(2).round();
 		box.pos.y = 60;
 		box.size.y = parent->box.size.y - 2 * box.pos.y;
 
@@ -516,6 +515,8 @@ void appModuleBrowserCreate() {
 
 	ModuleBrowser *moduleBrowser = new ModuleBrowser();
 	overlay->addChild(moduleBrowser);
+	moduleBrowser->box.pos = gMousePos.minus(moduleBrowser->box.getCenter());
+
 	gScene->setOverlay(overlay);
 }
 

src/ui/ScrollWidget.cpp

@@ -140,5 +140,9 @@ void ScrollWidget::onScroll(EventScroll &e) {
 	e.consumed = true;
 }
 
+void ScrollWidget::onHoverKey(EventHoverKey &e) {
+	Widget::onHoverKey(e);
+}
+
 
 } // namespace rack