[typescript-msw] allow to add link without name suffix

**Is your feature request related to a problem? Please describe.**

I'm using [link](https://the-guild.dev/graphql/codegen/plugins/typescript/typescript-msw#link) feature to config different endpoints, but in my code structure, I already use module export to split the different link.

But with link, the name wil be forced to add a suffix.

Without Link:
```ts
api1.mockGetBillingsQuery((req, res, ctx) =>
res(ctx.data({ billingInformation: { items: [] } })),
)
```

With Link:
```ts
api1.mockGetBillingsQueryApi1((req, res, ctx) =>
res(ctx.data({ billingInformation: { items: [] } })),
)
```

I think it will be nice to allow us to use link without the suffix.

**Describe the solution you'd like**

Add a `withSuffix` boolean param in configuration, and make default as `true`, as a compitible change.