Qt: Improve spacing

Source/Core/DolphinQt2/Config/Mapping/MappingButton.cpp

@@ -63,6 +63,10 @@ MappingButton::MappingButton(MappingWidget* widget, ControlReference* ref, bool
   });
 
   m_timer->start(1000 / 30);
+
+  setMaximumHeight(24);
+  setMaximumWidth(200);
+  setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
 }
 
 void MappingButton::Connect()

Source/Core/DolphinQt2/Config/Mapping/MappingWidget.cpp

@@ -80,7 +80,6 @@ QGroupBox* MappingWidget::CreateGroupBox(const QString& name, ControllerEmu::Con
   for (auto& numeric : group->numeric_settings)
   {
     auto* spinbox = new MappingNumeric(this, numeric.get());
-    spinbox->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
     form_layout->addRow(QString::fromStdString(numeric->m_name), spinbox);
     m_numerics.push_back(spinbox);
   }
@@ -88,7 +87,6 @@ QGroupBox* MappingWidget::CreateGroupBox(const QString& name, ControllerEmu::Con
   for (auto& boolean : group->boolean_settings)
   {
     auto* checkbox = new MappingBool(this, boolean.get());
-    checkbox->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
     form_layout->addRow(checkbox);
     m_bools.push_back(checkbox);
   }

Source/Core/DolphinQt2/Config/Mapping/MappingWindow.cpp

@@ -31,6 +31,7 @@
 #include "DolphinQt2/Config/Mapping/WiimoteEmuExtension.h"
 #include "DolphinQt2/Config/Mapping/WiimoteEmuGeneral.h"
 #include "DolphinQt2/Config/Mapping/WiimoteEmuMotionControl.h"
+#include "DolphinQt2/QtUtils/WrapInScrollArea.h"
 #include "DolphinQt2/Settings.h"
 #include "InputCommon/ControllerEmu/ControllerEmu.h"
 #include "InputCommon/ControllerInterface/ControllerInterface.h"
@@ -312,7 +313,7 @@ void MappingWindow::SetMappingType(MappingWindow::Type type)
 
 void MappingWindow::AddWidget(const QString& name, QWidget* widget)
 {
-  m_tab_widget->addTab(widget, name);
+  m_tab_widget->addTab(GetWrappedWidget(widget, this, 150), name);
 }
 
 int MappingWindow::GetPort() const