Qt: Increase maximum magnifications and scaling

CHANGES

@@ -61,6 +61,7 @@ Misc:
  - Qt: Open a message box for Qt frontend errors
  - GBA Video: Clean up dead code in sprite rendering loop
  - FFmpeg: Support audio-only recording
+ - Qt: Increase maximum magnifications and scaling
 
 0.7.1: (2019-02-24)
 Bugfixes:

src/platform/qt/MapView.ui

@@ -104,7 +104,7 @@
         <number>1</number>
        </property>
        <property name="maximum">
-        <number>4</number>
+        <number>8</number>
        </property>
       </widget>
      </item>

src/platform/qt/ObjView.ui

@@ -59,7 +59,7 @@
         <number>1</number>
        </property>
        <property name="maximum">
-        <number>6</number>
+        <number>8</number>
        </property>
       </widget>
      </item>

src/platform/qt/SettingsView.ui

@@ -894,7 +894,7 @@
              <number>1</number>
             </property>
             <property name="maximum">
-             <number>13</number>
+             <number>16</number>
             </property>
            </widget>
           </item>

src/platform/qt/TileView.ui

@@ -126,7 +126,7 @@
         <number>1</number>
        </property>
        <property name="maximum">
-        <number>4</number>
+        <number>8</number>
        </property>
       </widget>
      </item>

src/platform/qt/Window.cpp

@@ -1284,7 +1284,7 @@ void Window::setupMenu(QMenuBar* menubar) {
 
 	m_actions.addMenu(tr("Audio/&Video"), "av");
 	m_actions.addMenu(tr("Frame size"), "frame", "av");
-	for (int i = 1; i <= 6; ++i) {
+	for (int i = 1; i <= 8; ++i) {
 		Action* setSize = m_actions.addAction(tr("%1×").arg(QString::number(i)), QString("frame.%1x").arg(QString::number(i)), [this, i]() {
 			Action* setSize = m_frameSizes[i];
 			showNormal();