fix: Lack of node_modules/electron-audio-loopback/dist/types.js declaration file

[JoshHuang9508]

When try to complie with electron, it will show:

> tsc -p tsconfig.electron.json

node_modules/electron-audio-loopback/dist/main.d.ts:1:38 - error TS2307: Cannot find module './types.js' or its corresponding type declarations.

1 import { type InitMainOptions } from './types.js';

node_modules/electron-audio-loopback/dist/renderer.d.ts:1:57 - error TS2307: Cannot find module './types.js' or its corresponding type declarations.

1 import { type GetLoopbackAudioMediaStreamOptions } from './types.js';
                                                          ~~~~~~~~~~~~


Found 2 errors in 2 files.

Errors  Files
     1  node_modules/electron-audio-loopback/dist/main.d.ts:1
     1  node_modules/electron-audio-loopback/dist/renderer.d.ts:1
error Command failed with exit code 2.

Seems like the node_modules/electron-audio-loopback/dist/types.js declaration file is not include into the package
So I copy the types.d.ts from src/ to dist/ after build

[alectrocute]

Hey, thanks for making a PR. I'm not totally thrilled with this solution. Is there a bug with how we're exporting types here? https://github.com/alectrocute/electron-audio-loopback/blob/main/src/index.ts#L5

[JoshHuang9508]

I think it's because tsconfig won't include .d.ts file when building to /dist, so I manually copy one after building.
There might be some other ways but I only using the simpliest one because it make it work in my project