message: add file menu shortcuts into lumina-mediaplayer
diff: <x>0</x>
  <y>0</y>
  <width>405</width>
  - <height>19</height>
  + <height>28</height>
  </rect>
  </property>
  <widget class="QMenu" name="menuFile">
  <property name="title">
  - <string>File</string>
  + <string>&amp;File</string>
  </property>
  <addaction name="separator"/>
  <addaction name="actionClose"/>
  </widget>
  <widget class="QMenu" name="menuView">
  <property name="title">
  - <string>View</string>
  + <string>&amp;View</string>
  </property>
  <addaction name="action_closeToTray"/>
  <addaction name="action_showNotifications"/>
  