[Ivette] AppImage distribution

ivette/electron-builder.json

 {
   "productName": "Ivette",
   "mac": { "icon": "icon.icns" },
-  "linux": { "icon": "icon.png" }
+  "linux": {
+    "icon": "icon.png",
+    "target": "appImage",
+    "description": "This is a test"
+  }
 }

ivette/src/dome/template/makefile

@@ -253,6 +253,7 @@ dome-app: dome-pkg dome-templ
 dome-dist: dome-app
 	@echo "[Dome] packaging application (production)"
 	DOME=$(DOME) yarn run electron-builder --dir -c.compression=store -c.mac.identity=null
+	DOME=$(DOME) yarn run electron-builder --linux
 	@echo "[Dome] application packaged in ./dist"
 
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