fixed logo

functions.cpp

 #include <unistd.h>
 #endif
 
-
 // =========================================================
 // Sort Functions
 // =========================================================

images.qrc

         <file>resources/d4.png</file>
         <file>resources/d5.png</file>
         <file>resources/d6.png</file>
+        <file>resources/logo.png</file>
     </qresource>
 </RCC>

mainwindow.ui

      </rect>
     </property>
     <property name="styleSheet">
-     <string notr="true">background-image: url(/home/rgb/Desktop/eip/CaesarCipher/logo.png);
-border: 0px;
-repeat: no-repeat;</string>
+     <string notr="true">background-image: url(:/images/resources/logo.png);</string>
     </property>
     <property name="frameShape">
      <enum>QFrame::StyledPanel</enum>