chore: Update macOS runner and streamline release artifacts

This commit updates the GitHub Actions workflow for building the desktop application.

The macOS Intel build runner has been updated from `macos-13` to `macos-15-intel`.

Additionally, the build process has been simplified by removing the `packageUberJarForCurrentOS` Gradle task, as it is redundant. The release artifact configuration has also been cleaned up to only include essential installer formats (`.dmg`, `.msi`, `.deb`), removing `.pkg`, `.exe`, `.rpm`, and `.jar` files.

Author: Coding-Meet

.github/workflows/build-desktop.yml

@@ -76,10 +76,10 @@ jobs:
         uses: softprops/action-gh-release@v2
         with:
           files: |
-            artifacts/build-macos-arm/**/*.dmg
-            artifacts/build-macos-intel/**/*.dmg
-            artifacts/build-windows/**/*.msi
-            artifacts/build-linux/**/*.deb
+            artifacts/build-macos-arm/main-release/dmg/*.dmg
+            artifacts/build-macos-intel/main-release/dmg/*.dmg
+            artifacts/build-windows/main-release/msi/*.msi
+            artifacts/build-linux/main-release/deb/*.deb
           draft: true
           tag_name: ${{ github.ref_name }}
         env: