fix position of cancel button

src/sendHushTransactionChat.ui

@@ -6,14 +6,14 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>216</width>
-    <height>384</height>
+    <width>212</width>
+    <height>405</height>
    </rect>
   </property>
   <property name="windowTitle">
    <string>Send or Request Hush</string>
   </property>
-  <layout class="QGridLayout" name="gridLayout_2">
+  <layout class="QGridLayout" name="gridLayout">
    <item row="0" column="0">
     <widget class="QLabel" name="label_2">
      <property name="text">
@@ -223,15 +223,34 @@
      </item>
     </layout>
    </item>
-   <item row="7" column="1">
-    <widget class="QDialogButtonBox" name="buttonBox">
-     <property name="orientation">
-      <enum>Qt::Horizontal</enum>
+   <item row="7" column="0" colspan="2">
+    <layout class="QHBoxLayout" name="horizontalLayout_4">
+     <property name="sizeConstraint">
+      <enum>QLayout::SetFixedSize</enum>
      </property>
-     <property name="standardButtons">
-      <set>QDialogButtonBox::Cancel</set>
+     <property name="leftMargin">
+      <number>6</number>
      </property>
-    </widget>
+     <property name="topMargin">
+      <number>6</number>
+     </property>
+     <property name="rightMargin">
+      <number>6</number>
+     </property>
+     <property name="bottomMargin">
+      <number>6</number>
+     </property>
+     <item>
+      <widget class="QDialogButtonBox" name="buttonBox">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="standardButtons">
+        <set>QDialogButtonBox::Cancel</set>
+       </property>
+      </widget>
+     </item>
+    </layout>
    </item>
   </layout>
  </widget>