Devtools for Vue standalone

### Clear and concise description of the problem

It looks like rstore currently offers devtools when using nuxt, it doesn't look like anything is available in Vue's devtools when just working with pure Vue.

### Suggested solution

Offer devtools for Vue standalone

### Alternative

_No response_

### Additional context

Is this something that's already on the roadmap or is this something that already exists that I'm missing?

### Validations

- [x] Follow our [Code of Conduct](https://github.com/Akryum/rstore/blob/main/CODE_OF_CONDUCT.md)
- [x] Read the [Contributing Guidelines](https://github.com/Akryum/rstore/blob/main/CONTRIBUTING.md).
- [x] Read the [docs](https://rstore.starpad.dev/guide/).
- [x] Check that there isn't [already an issue](https://github.com/Akryum/rstore/issues) that requests the same feature to avoid creating a duplicate.