chore: CI/CD add flatpak to release

.github/workflows/release.yml

@@ -12,10 +12,16 @@ jobs:
         with:
           profile: minimal
           toolchain: nightly
-      - name: Build
+      - name: Build rust package
         run: cargo build --release --verbose
+      - name: Build Flatpak
+        run: 
+          flatpak-builder build org.xetibo.ReSet.json --force-clean 
+          flatpak build-export export build
+          flatpak build-bundle export reset.flatpak org.xetibo.ReSet
       - name: Release
         uses: softprops/action-gh-release@v1
         with:
           files: |
             target/release/reset
+            flatpak/reset.flatpak