use reflow to migrate from flow to typescript

scm-ui/ui-scripts/src/webpack.config.js

@@ -9,9 +9,9 @@ module.exports = [
     context: root,
     entry: {
       webapp: [
-        "./ui-webapp/src/webpack-public-path.js",
+        "./ui-webapp/src/webpack-public-path.ts",
         "./ui-styles/src/scm.scss",
-        "./ui-webapp/src/index.js"
+        "./ui-webapp/src/index.tsx"
       ]
     },
     devtool: "cheap-module-eval-source-map",
@@ -30,7 +30,7 @@ module.exports = [
           }
         },
         {
-          test: /\.(js|jsx)$/,
+          test: /\.(js|ts|jsx|tsx)$/i,
           exclude: /node_modules/,
           use: [
             {
@@ -65,6 +65,11 @@ module.exports = [
         }
       ]
     },
+    resolve: {
+      extensions: [
+        ".ts", ".tsx", ".js", ".jsx", ".css", ".scss", ".json"
+      ]
+    },
     output: {
       path: path.join(root, "target", "assets"),
       filename: "[name].bundle.js"