Add electron forge

package.json

@@ -2,13 +2,48 @@
   "name": "vikunja-desktop",
   "version": "0.14.0",
   "description": "Vikunja's frontend, repackaged as an electron app!",
-  "main": "index.js",
+  "main": "src/index.js",
   "repository": "https://code.vikunja.io/desktop",
   "license": "GPLv3",
-  "devDependencies": {
-    "electron": "^9.1.0"
-  },
   "scripts": {
-    "start": "electron ."
+    "start": "electron-forge start",
+    "package": "electron-forge package",
+    "make": "electron-forge make",
+    "publish": "electron-forge publish"
+  },
+  "config": {
+    "forge": {
+      "packagerConfig": {},
+      "makers": [
+        {
+          "name": "@electron-forge/maker-squirrel",
+          "config": {
+            "name": "desktop"
+          }
+        },
+        {
+          "name": "@electron-forge/maker-zip",
+          "platforms": [
+            "darwin"
+          ]
+        },
+        {
+          "name": "@electron-forge/maker-deb",
+          "config": {}
+        },
+        {
+          "name": "@electron-forge/maker-rpm",
+          "config": {}
+        }
+      ]
+    }
+  },
+  "devDependencies": {
+    "@electron-forge/cli": "6.0.0-beta.52",
+    "@electron-forge/maker-deb": "6.0.0-beta.52",
+    "@electron-forge/maker-rpm": "6.0.0-beta.52",
+    "@electron-forge/maker-squirrel": "6.0.0-beta.52",
+    "@electron-forge/maker-zip": "6.0.0-beta.52",
+    "electron": "9.1.0"
   }
 }