querydialog.ui: Allow smaller dialog size

As the query label is determined by the remote server, it can be
arbitrarily long. Therefore, it makes sense to enable word wrap so
the dialog still fits on devices with smaller screens, such as mobile
phones.

src/widgets/querydialog.ui

@@ -10,15 +10,27 @@
     <height>240</height>
    </rect>
   </property>
+  <property name="sizePolicy">
+   <sizepolicy hsizetype="MinimumExpanding" vsizetype="MinimumExpanding">
+    <horstretch>0</horstretch>
+    <verstretch>0</verstretch>
+   </sizepolicy>
+  </property>
   <property name="windowTitle">
    <string>Dialog</string>
   </property>
+  <property name="sizeGripEnabled">
+   <bool>true</bool>
+  </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>
     <widget class="QLabel" name="query">
      <property name="text">
       <string/>
      </property>
+     <property name="wordWrap">
+      <bool>true</bool>
+     </property>
     </widget>
    </item>
    <item>