Regenerate some .ui files

This shouldn't change anything at all. It's just that Qt Designer keeps
insisting to do these changes and I have finally given in.

src/MainWindow.ui

@@ -371,8 +371,8 @@
             <rect>
              <x>0</x>
              <y>0</y>
-             <width>473</width>
-             <height>558</height>
+             <width>605</width>
+             <height>568</height>
             </rect>
            </property>
            <layout class="QFormLayout" name="formLayout">
@@ -859,7 +859,7 @@
      <x>0</x>
      <y>0</y>
      <width>1037</width>
-     <height>29</height>
+     <height>30</height>
     </rect>
    </property>
    <widget class="QMenu" name="fileMenu">
@@ -1731,7 +1731,7 @@
   </action>
   <action name="fileExportJsonAction">
    <property name="text">
-    <string>Table(s) to JSON...</string>
+    <string>Table(&amp;s) to JSON...</string>
    </property>
    <property name="toolTip">
     <string>Export one or more table(s) to a JSON file</string>
@@ -1754,7 +1754,7 @@
      <normaloff>:/icons/db_open</normaloff>:/icons/db_open</iconset>
    </property>
    <property name="text">
-    <string>&amp;Open Database Read Only...</string>
+    <string>Open Data&amp;base Read Only...</string>
    </property>
    <property name="toolTip">
     <string>Open an existing database file in read only mode</string>
@@ -1818,6 +1818,7 @@
    <extends>QTableWidget</extends>
    <header>ExtendedTableWidget.h</header>
    <slots>
+    <signal>foreignKeyClicked(QString,QString,QByteArray)</signal>
     <signal>foreignKeyClicked(sqlb::ObjectIdentifier,QString,QByteArray)</signal>
    </slots>
   </customwidget>

src/SqlExecutionArea.ui

@@ -28,7 +28,7 @@
        <set>QAbstractItemView::NoEditTriggers</set>
       </property>
      </widget>
-     <widget class="QWidget" name="">
+     <widget class="QWidget" name="layoutWidget">
       <layout class="QHBoxLayout" name="horizontalLayout">
        <item>
         <widget class="QTextEdit" name="editErrors">
@@ -89,6 +89,7 @@
    <header>ExtendedTableWidget.h</header>
    <slots>
     <signal>foreignKeyClicked(QString,QString,QByteArray)</signal>
+    <signal>foreignKeyClicked(sqlb::ObjectIdentifier,QString,QByteArray)</signal>
    </slots>
   </customwidget>
  </customwidgets>