Removing babel-cli in favor of tsc for es5 distribution

Author: spong

babel.config.js

@@ -12,8 +12,7 @@
     "README.md"
   ],
   "scripts": {
-    "build": "rimraf dist/ && tsc -p tsconfig.cjs.json && tsc -p tsconfig.esm.json && npm run build-web",
-    "build-web": "BABEL_ENV=web babel dist/esm --config-file=./babel.config.js --out-dir=dist/web --source-maps=true",
+    "build": "rimraf dist/ && tsc -p tsconfig.cjs.json && tsc -p tsconfig.esm.json && tsc -p tsconfig.es5.json",
     "pretest": "npm run build",
     "test": "echo \"It built ok, that'll do for now\"",
     "prepack": "npm run build",
@@ -40,7 +39,6 @@
   },
   "homepage": "https://github.com/httptoolkit/react-reverse-portal#readme",
   "devDependencies": {
-    "@babel/cli": "^7.6.4",
     "@babel/core": "^7.5.5",
     "@storybook/addon-storysource": "^5.1.11",
     "@storybook/addons": "^5.1.11",

package.json

@@ -0,0 +1,9 @@
+{
+    "extends": "./tsconfig.json",
+    "compilerOptions": {
+        "target": "es5",
+        "lib": ["es6", "dom"],
+        "module": "es6",
+        "outDir": "./dist/web"
+    }
+}