Tweak top margins of main window content

resources/ui/carla_host.ui

@@ -18,7 +18,16 @@
     <property name="spacing">
      <number>0</number>
     </property>
-    <property name="margin">
+    <property name="leftMargin">
+     <number>0</number>
+    </property>
+    <property name="topMargin">
+     <number>4</number>
+    </property>
+    <property name="rightMargin">
+     <number>0</number>
+    </property>
+    <property name="bottomMargin">
      <number>0</number>
     </property>
     <item>
@@ -344,7 +353,7 @@
       <number>0</number>
      </property>
      <property name="topMargin">
-      <number>1</number>
+      <number>5</number>
      </property>
      <property name="rightMargin">
       <number>0</number>