Tweaks to Flight Mode Config visuals

src/AutoPilotPlugins/PX4/FlightModesComponent.qml

@@ -226,7 +226,7 @@ QGCView {
                         anchors.left:           parent.left
                         anchors.right:          applyButton.left
                         text:                   topHelpText
-                        font.pixelSize:         ScreenTools.mediumFontPixelSize
+                        font.pixelSize:         ScreenTools.defaultFontPixelSize
                         wrapMode:               Text.WordWrap
                     }
 

src/QmlControls/ModeSwitchDisplay.qml

@@ -64,15 +64,17 @@ Rectangle {
 
                 Rectangle {
                     width:  modeLabel.width
-                    height: modeLabel.contentHeight
+                    height: channelCombo.height
                     color:  modeSelected ? _qgcPal.buttonHighlight : _qgcPal.button
 
                     QGCLabel {
                         id:                     modeLabel
                         width:                  ScreenTools.defaultFontPixelWidth * 18
+                        anchors.top:            parent.top
+                        anchors.bottom:         parent.bottom
                         color:                  modeSelected ? _qgcPal.buttonHighlightText : _qgcPal.text
                         horizontalAlignment:    Text.AlignHCenter
-                        font.pixelSize:         ScreenTools.mediumFontPixelSize
+                        verticalAlignment:      Text.AlignVCenter
                         text:                   flightModeName
                     }
                 }