working on updating to core20 (#1944)

* working on updating to core20

* snap seems to work, need to update github actions and fix icon

* trying to enable experimental extensions

* fixed snap icon

* fixed gnome wayland issue

.github/workflows/Linux-pack.yml

@@ -639,6 +639,7 @@ jobs:
         id: snapcraft
       - name: Rename snap name
         shell: bash
+        snapcraft-args: --enable-experimental-extensions
         run: |
           mkdir -p $GITHUB_WORKSPACE/build
           cp ${{ steps.snapcraft.outputs.snap }} $GITHUB_WORKSPACE/build/${PRODUCT}-${VERSION}-${RELEASE}.amd64.snap