message: [GUI][Trivial] ColdStakingWidget: fix containerSend margins
  set margins to zero to keep consistency with send widget.
diff: <number>0</number>
  </property>
  <property name="leftMargin">
  - <number>20</number>
  + <number>0</number>
  </property>
  <property name="rightMargin">
  - <number>20</number>
  + <number>0</number>
  </property>
  <item>
  <widget class="QWidget" name="containerTitle" native="true">
  <number>0</number>
  </property>
  <property name="leftMargin">
  - <number>0</number>
  + <number>20</number>
  </property>
  <property name="topMargin">
  <number>0</number>
  </property>
  <property name="rightMargin">
  - <number>0</number>
  + <number>20</number>
  </property>
  <property name="bottomMargin">
  <number>0</number>
  