Move global stylesheet to lobby and courtroom

This way, it will not affect the options dialog.

src/aoapplication.cpp

@@ -18,7 +18,7 @@ AOApplication::AOApplication(int &argc, char **argv) : QApplication(argc, argv)
   discord = new AttorneyOnline::Discord();
   QObject::connect(net_manager, SIGNAL(ms_connect_finished(bool, bool)),
                    SLOT(ms_connect_finished(bool, bool)));
-  // qApp->setStyleSheet("QFrame {background-color:transparent;} QAbstractItemView {background-color: transparent; color: black;}; QLineEdit {background-color:transparent;}");
+
   asset_lookup_cache.reserve(2048);
 }
 

src/courtroom.cpp

@@ -1222,6 +1222,12 @@ void Courtroom::set_stylesheet(QWidget *widget)
 void Courtroom::set_stylesheets()
 {
   set_stylesheet(this);
+  this->setStyleSheet(
+    "QFrame { background-color:transparent; } "
+    "QAbstractItemView { background-color: transparent; color: black; } "
+    "QLineEdit { background-color:transparent; }"
+    + this->styleSheet()
+  );
 }
 
 void Courtroom::set_window_title(QString p_title)

src/lobby.cpp

@@ -235,6 +235,12 @@ void Lobby::set_stylesheet(QWidget *widget)
 void Lobby::set_stylesheets()
 {
   set_stylesheet(this);
+  this->setStyleSheet(
+    "QFrame { background-color:transparent; } "
+    "QAbstractItemView { background-color: transparent; color: black; } "
+    "QLineEdit { background-color:transparent; }"
+    + this->styleSheet()
+  );
 }
 
 void Lobby::set_font(QWidget *widget, QString p_identifier)