#2418 updating jpackage config (#2713)

# Description

Updating the `jpackage` configuration in our build.gradle and CI to
enable installation of the app on multiple OSs

Closes #2418 

## Checklist

- [x] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [x] I have performed a self-review of my own code
- [x] I have attached images of the change if it is UI based
- [x] I have commented my code, particularly in hard-to-understand areas
- [x] If my code has heavily changed functionality I have updated
relevant docs on [Stirling-PDFs doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
- [x] My changes generate no new warnings
- [x] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

.github/workflows/multiOSReleases.yml

@@ -130,8 +130,8 @@ jobs:
         include:
           - os: windows-latest
             platform: win-
-          # - os: macos-latest
-          #   platform: mac-
+          - os: macos-latest
+            platform: mac-
           # - os: ubuntu-latest
           #   platform: linux-
     runs-on: ${{ matrix.os }}
@@ -168,6 +168,7 @@ jobs:
         env:
           DOCKER_ENABLE_SECURITY: false
           STIRLING_PDF_DESKTOP_UI: true
+          BROWSER_OPEN: true
 
       # Rename and collect artifacts based on OS
       - name: Prepare artifacts
@@ -202,8 +203,8 @@ jobs:
         include:
           - os: windows-latest
             platform: win-
-          # - os: macos-latest
-          #   platform: mac-
+          - os: macos-latest
+            platform: mac-
           # - os: ubuntu-latest
           #   platform: linux-
     runs-on: ubuntu-latest