Build: Optional skipping of typescript checking in dev bundler (#18772)

* Build: Removed typescript checking from dev bundler

- when switching branches and trying out features, TS checking and bundling are eating up a lot
of CPU
- most of us are using an editor with typechecking support
- this commit removes type checking from the dev bundler
- we still have type checking enabled as a precommit hook and as part of
the prod bundler

* Adds new npm script: start:noTsCheck

scripts/webpack/webpack.common.js

@@ -1,5 +1,4 @@
 const path = require('path');
-const ForkTsCheckerWebpackPlugin = require('fork-ts-checker-webpack-plugin');
 
 module.exports = {
   target: 'web',
@@ -72,10 +71,5 @@ module.exports = {
         }
       }
     }
-  },
-  plugins: [
-    new ForkTsCheckerWebpackPlugin({
-      checkSyntacticErrors: true,
-    }),
-  ]
+  }
 };