fix: [DI type missing in typescript environment] in [fast 2.0.1]

[kongshu612]

🐛 Bug Report

when we import DI from fast-element in typesciprt. this code snipt is not working import {DI} from '@microsoft/fast-element/di.js';, As a workaround, we need to include this settings in my tsconfig to specifiy path resolution

"paths": {
      "@microsoft/fast-element/di.js": [
        "node_modules/@microsoft/fast-element/dist/dts/di/di.d.ts"
      ]
} 

Can we support this out of box? it is not friendly for newbees.

💻 Repro or Code Sample

typescript verson: 5.7.2
fast-element: 2.0.1

part of the tsconfig

{
"target": "es2016",
"experimentalDecorators": true,
"module": "commonjs",
"esModuleInterop": true
}

🤔 Expected Behavior

I want to use DI feature out of box just like FastElement

😯 Current Behavior

I need to change the paths of my tsconfig so that typescript can resolve the di.d.ts

💁 Possible Solution

when we build packages, can we include the di.js into the index.js and also integrage the di.d.ts file into index.d.ts

🔦 Context

🌍 Your Environment

typescript verson: 5.7.2
fast-element: 2.0.1

part of the tsconfig

{
"target": "es2016",
"experimentalDecorators": true,
"module": "commonjs",
"esModuleInterop": true
}