Fix margins for expressionbuilder on gnome

Author: m-kuhn

src/ui/qgsexpressionbuilder.ui

@@ -441,7 +441,16 @@
           <bool>true</bool>
          </property>
          <layout class="QGridLayout" name="gridLayout">
-          <property name="margin">
+          <property name="leftMargin">
+           <number>0</number>
+          </property>
+          <property name="topMargin">
+           <number>9</number>
+          </property>
+          <property name="rightMargin">
+           <number>0</number>
+          </property>
+          <property name="bottomMargin">
            <number>0</number>
           </property>
           <item row="1" column="0">
@@ -518,17 +527,17 @@
   </layout>
  </widget>
  <customwidgets>
+  <customwidget>
+   <class>QgsFilterLineEdit</class>
+   <extends>QLineEdit</extends>
+   <header>qgsfilterlineedit.h</header>
+  </customwidget>
   <customwidget>
    <class>QgsCollapsibleGroupBox</class>
    <extends>QGroupBox</extends>
    <header>qgscollapsiblegroupbox.h</header>
    <container>1</container>
   </customwidget>
-  <customwidget>
-   <class>QgsFilterLineEdit</class>
-   <extends>QLineEdit</extends>
-   <header>qgsfilterlineedit.h</header>
-  </customwidget>
   <customwidget>
    <class>QgsCodeEditorSQL</class>
    <extends>QWidget</extends>