init drawio extension build

Author: linlol

package.json

@@ -30,8 +30,8 @@
     "build": "jlpm build:lib && jlpm build:labextension:dev",
     "build:labextension": "jupyter labextension build .",
     "build:labextension:dev": "jupyter labextension build --development True .",
-    "build:lib": "tsc --sourceMap",
-    "build:lib:prod": "tsc",
+    "build:lib": "tsc --sourceMap && cp -R src/drawio lib",
+    "build:lib:prod": "tsc && cp -R src/drawio lib",
     "build:prod": "jlpm clean && jlpm build:lib:prod && jlpm build:labextension",
     "clean": "jlpm clean:lib",
     "clean:all": "jlpm clean:lib && jlpm clean:labextension && jlpm clean:lintcache",

src/widget.ts

@@ -431,6 +431,7 @@ export class DrawIOWidget extends Widget {
   }
 
   private _editor: any;
+  //@ts-ignore
   private _mx: Private.MX;
   private _promptSpacing: any;
   private _ready = new PromiseDelegate<void>();

tsconfig.json

@@ -16,8 +16,16 @@
     "outDir": "lib",
     "rootDir": "src",
     "strict": true,
-    "strictNullChecks": true,
-    "target": "ES2018"
+    "skipLibCheck": true,
+    "strictNullChecks": false,
+    "target": "es2018",
+    "types": [],
   },
-  "include": ["src/*"]
+  "include": ["src/**/*"],
+  "exclude": [
+    "node_modules",
+    "./node_modules",
+    "./node_modules/*",
+    "./node_modules/@types/node/index.d.ts",
+  ]
 }