Merge branch 'kassa-splitter'

Only affects kassa/widget.ui.
Places the two halves in a draggable splitter. That was WAY harder than
it should have been.

kassa/widget.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>923</width>
-    <height>733</height>
+    <width>704</width>
+    <height>590</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -30,12 +30,17 @@
       </widget>
      </item>
      <item>
-      <layout class="QHBoxLayout" name="horizontalLayout">
-       <item>
-        <layout class="QVBoxLayout" name="verticalLayout_7">
-         <property name="leftMargin">
-          <number>10</number>
+      <widget class="QSplitter" name="mainSplitter">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="childrenCollapsible">
+        <bool>false</bool>
        </property>
+       <widget class="QWidget" name="layoutWidget">
+        <layout class="QHBoxLayout" name="LeftHalf">
+         <item>
+          <layout class="QVBoxLayout" name="buyLayout">
            <item>
             <widget class="QTreeView" name="productList">
              <property name="autoScroll">
@@ -123,7 +128,7 @@
           </layout>
          </item>
          <item>
-        <layout class="QVBoxLayout" name="verticalLayout_4">
+          <layout class="QVBoxLayout" name="buttonLayout">
            <item>
             <spacer name="verticalSpacer_2">
              <property name="orientation">
@@ -199,24 +204,40 @@
            </item>
           </layout>
          </item>
+        </layout>
+       </widget>
+       <widget class="QWidget" name="RightHalfLayout" native="true">
+        <layout class="QVBoxLayout" name="verticalLayout_4">
+         <property name="spacing">
+          <number>0</number>
+         </property>
+         <property name="leftMargin">
+          <number>2</number>
+         </property>
+         <property name="topMargin">
+          <number>0</number>
+         </property>
+         <property name="rightMargin">
+          <number>0</number>
+         </property>
+         <property name="bottomMargin">
+          <number>0</number>
+         </property>
          <item>
           <widget class="QTabWidget" name="RightHalf">
            <property name="tabPosition">
             <enum>QTabWidget::East</enum>
            </property>
            <property name="currentIndex">
-          <number>1</number>
+            <number>0</number>
            </property>
            <widget class="QWidget" name="logTab">
             <attribute name="title">
              <string>Logg</string>
             </attribute>
             <layout class="QVBoxLayout" name="verticalLayout_3">
-           <property name="topMargin">
-            <number>9</number>
-           </property>
              <item>
-            <widget class="QSplitter" name="splitter">
+              <widget class="QSplitter" name="logSplitter">
                <property name="orientation">
                 <enum>Qt::Vertical</enum>
                </property>
@@ -367,6 +388,8 @@
           </widget>
          </item>
         </layout>
+       </widget>
+      </widget>
      </item>
     </layout>
    </item>