fix(snap): re-add desktop entries (#2553)

stores/snapcraft/insider/snap/snapcraft.yaml

@@ -96,7 +96,9 @@ parts:
 apps:
   codium:
     command: electron-launch $SNAP/usr/share/codium-insiders/bin/codium-insiders --no-sandbox
+    desktop: usr/share/applications/codium-insiders.desktop
     common-id: codium-insiders.desktop
 
   url-handler:
     command: electron-launch $SNAP/usr/share/codium-insiders/bin/codium-insiders --open-url --no-sandbox
+    desktop: usr/share/applications/codium-insiders-url-handler.desktop

stores/snapcraft/stable/snap/snapcraft.yaml

@@ -96,7 +96,9 @@ parts:
 apps:
   codium:
     command: electron-launch $SNAP/usr/share/codium/bin/codium --no-sandbox
+    desktop: usr/share/applications/codium.desktop
     common-id: codium.desktop
 
   url-handler:
     command: electron-launch $SNAP/usr/share/codium/bin/codium --open-url --no-sandbox
+    desktop: usr/share/applications/codium-url-handler.desktop