message: add file menu shortcuts into lumina-archiver
diff: <x>0</x>
  <y>0</y>
  <width>403</width>
  - <height>20</height>
  + <height>28</height>
  </rect>
  </property>
  <widget class="QMenu" name="menuFile">
  <property name="title">
  - <string>File</string>
  + <string>&amp;File</string>
  </property>
  <addaction name="action_New"/>
  <addaction name="action_Open"/>
  </widget>
  <widget class="QMenu" name="menuEdit">
  <property name="title">
  - <string>Edit</string>
  + <string>&amp;Edit</string>
  </property>
  <addaction name="actionAdd_File"/>
  <addaction name="actionAdd_Dirs"/>
  </widget>
  <widget class="QMenu" name="menuBurn_toDisk">
  <property name="title">
  - <string>Burn to Disk</string>
  + <string>&amp;Burn to Disk</string>
  </property>
  <addaction name="actionUSB_Image"/>
  </widget>
  