Snapcraft update

contrib/snap/snapcraft.yaml

@@ -7,7 +7,7 @@ description: |
 
 grade: stable
 confinement: strict
-base: core20
+base: core22
 compression: lzo
 architectures:
   - build-on: amd64
@@ -25,7 +25,8 @@ apps:
       # Override HOME so the datadir is located at ~/snap/pepecoin-core/common/.pepecoin/ instead of ~/snap/pepecoin-core/current/.pepecoin/, and each new version of the snap won't have a different data directory: https://docs.snapcraft.io/environment-variables/7983
       HOME: $SNAP_USER_COMMON
   qt:
-    command: bin/desktop-launch bin/pepecoin-qt
+    command-chain: [bin/desktop-launch]
+    command: bin/pepecoin-qt
     plugs: [home, removable-media, network, network-bind, desktop, x11, unity7]
     environment:
       HOME: $SNAP_USER_COMMON