Linux: rename .desktop file to match DBus name

Fixes #785

debian/changelog

@@ -1,3 +1,13 @@
+rpi-imager (1.8.5) unstable; urgency=medium
+
+  * Retry downloads on HTTP2 errors.
+  * Rename .desktop file to match DBus name, as some GNOME
+    desktop environments expect it that way.
+  * Disable Link Time Optimization as precaution against hard to
+    trace bugs.
+
+ -- Floris Bos <bos@je-eigen-domein.nl>  Sat, 20 Jan 2024 16:36:11 +0100
+
 rpi-imager (1.8.4) unstable; urgency=medium
 
   * OS customisation: Fixed #531, which caused password entry

src/CMakeLists.txt

@@ -342,7 +342,7 @@ else()
 
     install(TARGETS rpi-imager DESTINATION bin)
     install(FILES icons/rpi-imager.png DESTINATION share/icons/hicolor/128x128/apps)
-    install(FILES linux/rpi-imager.desktop DESTINATION share/applications)
+    install(FILES linux/org.raspberrypi.rpi-imager.desktop DESTINATION share/applications)
     install(FILES "${CMAKE_CURRENT_BINARY_DIR}/rpi-imager.metainfo.xml" DESTINATION share/metainfo)
 endif()