Release 0.12.1: packaged AppImage distribution

- self-contained Modula-2 IDE 0.12.1 AppImage (dist/Modula-2 IDE-0.12.1.AppImage)
- verified: backend ready, language plugin deployed and activated

apps/electron/package.json

@@ -1,7 +1,7 @@
 {
   "private": true,
   "name": "modula2-ide-electron",
-  "version": "0.12.0",
+  "version": "0.12.1",
   "description": "GNU Modula-2 IDE built on Eclipse Theia",
   "author": "Eric Streit <eric@yojik.eu>",
   "main": "electron-launcher.js",
@@ -59,7 +59,9 @@
       "plugins"
     ],
     "linux": {
-      "target": ["AppImage"],
+      "target": [
+        "AppImage"
+      ],
       "category": "Development"
     },
     "publish": null

package.json

@@ -1,7 +1,7 @@
 {
   "private": true,
   "name": "modula2-ide",
-  "version": "0.12.0",
+  "version": "0.12.1",
   "description": "GNU Modula-2 IDE built on Eclipse Theia",
   "engines": {
     "node": ">=24",