[Question]: How to use js_grpc_node_library with custom npm repo name

I'm using rules_js, my `WORKSPACE` declares a custom name for the npm repo:

```
npm_translate_lock(
name = "custom_npm",
)
```

I'm also using https://github.com/rules-proto-grpc/rules_proto_grpc , my `BUILD` file looks like this:

```
proto_library(
name = "api_proto",
srcs = ["api.proto"],
)

js_grpc_node_library(
name = "protos_js",
protos = [":api_proto"],
)
```

Adding `deps_repo="@custom_npm"` doesn't work because the dep is looked up at `@custom_npm//@grpc/grpc-js` which I believe is correct when using the old and now unmaintained `rules_nodejs`, but when using the newer `rules_js` the dep is placed instead at `@custom_npm//:node_modules/@grpc/grpc-js` (per docs https://docs-legacy.aspect.build/aspect-build/rules_js/v1.6.4/docs/npm_import-docgen.html#npm_translate_lock-link_workspace).

In `rules_proto_grpc` there's a string replacement taking place https://github.com/rules-proto-grpc/rules_proto_grpc/blob/bbb81931a510290127471b25d31b97e8211fa401/js/js_grpc_node_library.bzl#L22 that doesn't seem ameanable to working with the way `rules_js` declares the npm dependencies when using a custom repo name, unless there is some other trick I am missing, is there a way to make this work?

Start with the WORKSPACE and BUILD examples, then inspect js/js_grpc_node_library.bzl at the linked string replacement and compare it with the rules_js npm_translate_lock documentation. Verify how @custom_npm labels are resolved for @grpc/grpc-js; done means determining whether the documented custom repository setup can work or identifying the required compatibility change.

Written by the indexing model from the issue text.