Add Linux desktop entry and update Debian installation script

Author: anjaldoshi

.github/workflows/linux.yml

@@ -72,7 +72,10 @@ jobs:
         cd ../Resources/Installers/Linux/Open-Ephys_Installer
         mkdir -p usr/local/bin/open-ephys-gui
         cp -r ../../../../Build/Release/* usr/local/bin/open-ephys-gui
+        cp ../../../Icons/icon-large.png usr/local/bin/open-ephys-gui
         cp ../../../Scripts/*.rules usr/local/bin/open-ephys-gui
+        mkdir -p usr/share/applications
+        cp open-ephys.desktop usr/share/applications
         cd ..
         dpkg-deb --build Open-Ephys_Installer
         installer=open-ephys-gui-${gui_ver}${version_suffix}.deb

Resources/Installers/Linux/Open-Ephys_Installer/DEBIAN/postinst

@@ -11,6 +11,12 @@ if [ "$1" = configure ]; then
     echo "Creating open-ephys symlink to /usr/local/bin..."
     ln -sf open-ephys-gui/open-ephys open-ephys
 
+    echo "Ensuring desktop entry permissions..."
+    chmod 644 /usr/share/applications/open-ephys.desktop
+    
+    echo "Updating desktop database..."
+    update-desktop-database -q
+
     echo "Installation finished!"
 
 fi

Resources/Installers/Linux/Open-Ephys_Installer/open-ephys.desktop

@@ -0,0 +1,11 @@
+[Desktop Entry]
+Version=1.0
+Type=Application
+Name=Open Ephys GUI
+Comment=Software for processing, recording, and visualizing multichannel electrophysiology data.
+Exec=/usr/local/bin/open-ephys-gui/open-ephys
+Icon=/usr/local/bin/open-ephys-gui/icon-large.png
+Categories=Science
+Terminal=false
+StartupNotify=true
+Keywords=ephys;electrophysiology;neuroscience;acquisition;visualization;recording;