Shorter text field width to save real estate

src/MissionEditor/MissionEditor.qml

@@ -39,7 +39,6 @@ QGCView {
     readonly property real      _horizontalMargin:  ScreenTools.defaultFontPixelWidth  / 2
     readonly property real      _margin:            ScreenTools.defaultFontPixelHeight * 0.5
     readonly property var       _activeVehicle:     QGroundControl.multiVehicleManager.activeVehicle
-    readonly property real      _editFieldWidth:    ScreenTools.defaultFontPixelWidth * 16
     readonly property real      _rightPanelWidth:   Math.min(parent.width / 3, ScreenTools.defaultFontPixelWidth * 30)
     readonly property real      _rightPanelOpacity: 0.8
     readonly property int       _toolButtonCount:   6

src/QmlControls/MissionItemEditor.qml

@@ -30,7 +30,7 @@ Rectangle {
     property bool   _currentItem:       missionItem.isCurrentItem
     property color  _outerTextColor:    _currentItem ? "black" : qgcPal.text
 
-    readonly property real  _editFieldWidth:    Math.min(width - _margin * 2, ScreenTools.defaultFontPixelWidth * 16)
+    readonly property real  _editFieldWidth:    Math.min(width - _margin * 2, ScreenTools.defaultFontPixelWidth * 12)
     readonly property real  _margin:            ScreenTools.defaultFontPixelWidth / 2
     readonly property real  _radius:            ScreenTools.defaultFontPixelWidth / 2