QmlDesigner.propertyEditor: fix .css files

share/qtcreator/qmldesigner/propertyeditor/Qt/alignmentbottombutton.css

 QPushButton {
-    border-image: url(:/qmldesigner/images/button_alignment_bottom_normal.png) 3;
-    border-width: 3;
+    border-image: url(:/qmldesigner/images/button_alignment_bottom_normal.png);
  }
  
   QPushButton:pressed {
-    border-image: url(:/qmldesigner/images/button_alignment_bottom_pressed.png) 3;
+    border-image: url(:/qmldesigner/images/button_alignment_bottom_pressed.png);
  }
  
  QPushButton:checked {
-    border-image: url(:/qmldesigner/images/button_alignment_bottom_pressed.png) 3;
+    border-image: url(:/qmldesigner/images/button_alignment_bottom_pressed.png);
  }

share/qtcreator/qmldesigner/propertyeditor/Qt/alignmentcenterhbutton.css

 QPushButton {
-    border-image: url(:/qmldesigner/images/button_alignment_centerh_normal.png) 3;
-    border-width: 3;
+    border-image: url(:/qmldesigner/images/button_alignment_centerh_normal.png);
  }
  
   QPushButton:pressed {
-    border-image: url(:/qmldesigner/images/button_alignment_centerh_pressed.png) 3;
+    border-image: url(:/qmldesigner/images/button_alignment_centerh_pressed.png);
  }
  
  QPushButton:checked {
-    border-image: url(:/qmldesigner/images/button_alignment_centerh_pressed.png) 3;
+    border-image: url(:/qmldesigner/images/button_alignment_centerh_pressed.png);
  }

share/qtcreator/qmldesigner/propertyeditor/Qt/alignmentcentervbutton.css

 QPushButton {
-    border-image: url(:/qmldesigner/images/button_alignment_centerv_normal.png) 3;
-    border-width: 3;
+    border-image: url(:/qmldesigner/images/button_alignment_centerv_normal.png);
  }
  
   QPushButton:pressed {
-    border-image: url(:/qmldesigner/images/button_alignment_centerv_pressed.png) 3;
+    border-image: url(:/qmldesigner/images/button_alignment_centerv_pressed.png);
  }
  
  QPushButton:checked {
-    border-image: url(:/qmldesigner/images/button_alignment_centerv_pressed.png) 3;
+    border-image: url(:/qmldesigner/images/button_alignment_centerv_pressed.png);
  }

share/qtcreator/qmldesigner/propertyeditor/Qt/alignmentleftbutton.css

 QPushButton {
-    border-image: url(:/qmldesigner/images/button_alignment_left_normal.png) 3;
-    border-width: 3;
+    border-image: url(:/qmldesigner/images/button_alignment_left_normal.png);
  }
  
   QPushButton:pressed {
-    border-image: url(:/qmldesigner/images/button_alignment_left_pressed.png) 3;
+    border-image: url(:/qmldesigner/images/button_alignment_left_pressed.png);
  }
  
  QPushButton:checked {
-    border-image: url(:/qmldesigner/images/button_alignment_left_pressed.png) 3;
+    border-image: url(:/qmldesigner/images/button_alignment_left_pressed.png);
  }

share/qtcreator/qmldesigner/propertyeditor/Qt/alignmentrightbutton.css

 QPushButton {
-    border-image: url(:/qmldesigner/images/button_alignment_right_normal.png) 3;
-    border-width: 3;
+    border-image: url(:/qmldesigner/images/button_alignment_right_normal.png);
  }
  
   QPushButton:pressed {
-    border-image: url(:/qmldesigner/images/button_alignment_right_pressed.png) 3;
+    border-image: url(:/qmldesigner/images/button_alignment_right_pressed.png);
  }
  
  QPushButton:checked {
-    border-image: url(:/qmldesigner/images/button_alignment_right_pressed.png) 3;
+    border-image: url(:/qmldesigner/images/button_alignment_right_pressed.png);
  }