Attempt to speedup snap startup

Author: giox069

snap/snapcraft.yaml

@@ -133,6 +133,17 @@ parts:
       - freerdp
       - desktop-gtk3
 
+  shared-mime-info:
+    after: [remmina]
+    plugin: nil
+    stage-packages:
+      - shared-mime-info
+    build-attributes: [no-system-libraries]
+    install: |
+      set -eux
+      update-mime-database $SNAPCRAFT_PART_INSTALL/usr/share/mime
+
+
   # Removing files that are accessible thanks to desktop plug
   desktop-gtk3:
     stage: