split web js to v1 and v2

flutter/web/v1/js/tsconfig.json

@@ -0,0 +1,24 @@
+{
+  "compilerOptions": {
+    "target": "ESNext",
+    "useDefineForClassFields": true,
+    "module": "ESNext",
+    "allowJs": true,
+    "lib": [
+      "ESNext",
+      "DOM"
+    ],
+    "moduleResolution": "Node",
+    "strict": true,
+    "sourceMap": true,
+    "resolveJsonModule": true,
+    "esModuleInterop": true,
+    "noEmit": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noImplicitReturns": true
+  },
+  "include": [
+    "./src"
+  ]
+}