👷‍♂️ Prepare package.json for npm install

package.json

@@ -7,6 +7,7 @@
     "url": "https://git.jedipedia.net/swtor/ssn.git"
   },
   "main": "dist/index.js",
+  "types": "dist/index.d.ts",
   "scripts": {
     "start": "rm -rf dist && tsc",
     "test": "echo \"Error: no test specified\" && exit 1"
@@ -17,5 +18,12 @@
   "dependencies": {
     "ssn-installer": "git+https://git.jedipedia.net/swtor/ssn-installer.git",
     "xml-js": "^1.6.8"
-  }
+  },
+  "files": [
+    "src/index.ts",
+    "src/*/*.ts",
+    "src/*/*/*.ts",
+    "src/*/*/*/*.ts",
+    "tsconfig.json"
+  ]
 }

tsconfig.json

@@ -1,6 +1,7 @@
 {
   "compilerOptions": {
     "baseUrl": ".",
+    "declaration": true,
     "inlineSourceMap": true,
     "inlineSources": true,
     "module": "commonjs",