Fix Flatpak build

flatpak/dev.nuculabs.ImageTagger.yaml

@@ -24,9 +24,11 @@ modules:
       - cp -R legal /app/bin/image/
       - cp -R release /app/bin/image/
       # Desktop Integration
+      - chmod +x /app/bin/image/lib/jexec
+      - chmod +x /app/bin/image/lib/jspawnhelper
       - mkdir -p bin /app/share/{applications,icons/hicolor/512x512/apps,metainfo}
       - mv ${FLATPAK_ID}.desktop      /app/share/applications/${FLATPAK_ID}.desktop
-      - mv ${FLATPAK_ID}.png          /app/share/icons/hicolor/64x64/apps/${FLATPAK_ID}.png
+      - mv ${FLATPAK_ID}.png          /app/share/icons/hicolor/512x512/apps/${FLATPAK_ID}.png
     sources:
       - type: archive
         path: ../img-ui/build/distributions/ImageTagger-linux.zip

flatpak/readme.md

@@ -1,3 +1,18 @@
 # Flatpak
 
-This directory contains the flatpak build files.
+This directory contains the flatpak build files.
+
+If you are on Linux and would like to install this application as a Flatpak image then
+build the application with gradle:
+
+```
+# in parrent folder:
+./gradlew jlinkZip
+```
+
+And execute:
+
+```shell
+cd flatpak
+./debug.sh
+```

readme.md

@@ -17,6 +17,8 @@ It allows photographers to automate the image tagging process. 📸
 
 Photo credit: [https://unsplash.com/@ndcphoto](https://unsplash.com/@ndcphoto)
 
+Alternatively see [Flatpak](./flatpak/readme.md) installation instructions.
+
 ## Development
 
 If you want to build the application yourself, you will need Java 17 JDK and the