[desktop] More qt_common reorganization (#3916)

Ported from QML branch.

Main "big" change is that EmuThread is now a shared state in QtCommon,
not individually managed/passed around by GRenderWindow and MainWindow.

Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3916
Reviewed-by: Lizzie <lizzie@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>

src/yuzu/updater/update_dialog.h

@@ -15,7 +15,7 @@ class UpdateDialog : public QDialog {
     Q_OBJECT
 
 public:
-    explicit UpdateDialog(const Common::Net::Release &release, QWidget* parent = nullptr);
+    explicit UpdateDialog(const Common::Net::Release& release, QWidget* parent = nullptr);
     ~UpdateDialog();
 
 private slots:
@@ -23,6 +23,6 @@ private slots:
 
 private:
     Ui::UpdateDialog* ui;
-    QList<QRadioButton *> m_buttons;
+    QList<QRadioButton*> m_buttons;
     Common::Net::Asset m_asset;
 };