Remove postinst script for desktop icon in Linux build

The postinst script responsible for placing the desktop icon during DEB package installation has been removed from the build workflow. This simplifies the packaging process and eliminates custom post-installation steps.

.github/workflows/build-linux.yml

@@ -125,7 +125,6 @@ jobs:
                 ("assets", "assets"),
                 ("ytsage.desktop", "share/applications/ytsage.desktop"),
                 ("assets/branding/icons/icon.png", "share/pixmaps/ytsage.png"),
-                ("debian/postinst", "DEBIAN/postinst"),  # Added for desktop icon
             ],
         )
 
@@ -175,32 +174,6 @@ jobs:
         StartupWMClass=YTSage
         DESKTOP
 
-    - name: Create postinst script for desktop icon
-      shell: bash
-      run: |
-        mkdir -p debian
-        cat > debian/postinst <<'POSTINST'
-        #!/bin/sh
-        set -e
-        # Copy .desktop file to user's desktop for icon
-        if [ -n "$SUDO_USER" ]; then
-          DESKTOP_DIR="/home/$SUDO_USER/Desktop"
-          if [ -d "$DESKTOP_DIR" ]; then
-            cp /usr/share/applications/ytsage.desktop "$DESKTOP_DIR/"
-            chmod +x "$DESKTOP_DIR/ytsage.desktop"
-            chown $SUDO_USER:$SUDO_USER "$DESKTOP_DIR/ytsage.desktop"
-            echo "Placed ytsage.desktop on $SUDO_USER's desktop"
-          else
-            echo "Warning: Desktop directory $DESKTOP_DIR not found, skipping desktop icon placement"
-          fi
-        else
-          echo "Warning: SUDO_USER not set, skipping desktop icon placement"
-        fi
-        # Update icon cache
-        gtk-update-icon-cache -f /usr/share/icons/hicolor/ 2>/dev/null || true
-        POSTINST
-        chmod +x debian/postinst
-
     - name: Build AppImage, RPM and DEB
       shell: bash
       run: |