Package name in conditional throws error.

Example Test
```sass
@use 'true'
@if true.$catch-errors
```
Result
```shell
    Expected digit.
       ╷
    31 │     @if true.$catch-errors
```
One Solution
```sass
@use 'sass-true'
@if sass-true.$catch-errors
```

There are multiple ways to handle this. Maybe this isn't even something to fix, but rather simply note.