Illegal path when importing embedded wesl shaders

## Bevy version

0.16.0

## What you did

I am using two wesl shaders, loaded as embedded assets in my library crate.
I register them for the asset server:
```rust
impl Plugin for RenderGraphPlugin {
fn build(&self, app: &mut bevy::app::App) {
embedded_asset!(app, "tesselate_pass.wesl");
embedded_asset!(app, "view.wesl");

std::mem::forget(
app.world_mut()
.resource_mut::()
.load::("embedded://my_plugin/render_graph/view.wesl"),
);

```
And within the tesselate shader I import the view shader
```rust
import super::view;

@group(0) @binding(0) var v: view::View;
```

## What went wrong

This panicked with the very unwelcoming message:
```
The application panicked (crashed).
Message: called `Result::unwrap()` on an `Err` value: ParseError { message: "expected `;`, found \":\"", labels: [(Span { start: 54, end: 55 }, "expected `;`")], notes: [] }
Location: /home/nionidh/projects/bevy-tomfoolery/bevy/crates/bevy_render/src/render_resource/pipeline_cache.rs:308
```

When looking at the compiled wesl sources, via a `println!("{}", &compiled.to_string());` here:
https://github.com/bevyengine/bevy/blob/f8082163950d1708a91313e4f46a57ed7c93d90b/crates/bevy_render/src/render_resource/pipeline_cache.rs#L315-L324

I can see that it's compiled to something like this:
```
@group(0) @binding(0)
var v: package_embedded:__2my_plugin__1render_graph_view_View;
```

Which has a colon `:` in the identifier part, and definitely is not valid wgsl.

Start by reproducing the embedded WESL import with the two shader snippets, then inspect crates/bevy_render/src/render_resource/pipeline_cache.rs around lines 308-324 and print the compiled source. Trace where the embedded module path becomes `package_embedded:__2my_plugin__1render_graph_view_View`; done means the imported shader produces valid WGSL and no parse panic.

Written by the indexing model from the issue text.