dioxus 0.7 | Server Functions :: HTTP methods

## Feature Request

In Dioxus 0.6, such construct registered a `GET /...` server function (and that's it):
```rs
#[server(endpoint = "admin/list_attr_defs", input = GetUrl)]
pub async fn list_attribute_defs() -> Result, ServerFnError> { ... }
```

Now, in the current Dioxus 0.7.2, such construct registers a `POST /api/list_dogs` server function:
```rs
#[server(endpoint = "list_dogs", input = GetUrl)]
pub async fn sf_list_dogs() -> Result, ServerFnError> { ... }
```

Of course, annotating it with `#[get("/api/list_dogs")]` registers a `GET /api/list_dogs` server functions:
```rs
#[server(endpoint = "list_dogs", input = GetUrl)]
#[get("/api/list_dogs")]
pub async fn sf_list_dogs() -> Result, ServerFnError> { ... }
```

But it still generates the `POST /api_list_dogs` server function, although that won't be used.

## Implement Suggestion

It would be nice to keep having that option to generate "clean" (and minimal enough) server functions with the desired paths and HTTP verbs.

`ServerFnArgs` rust doc explicitly mentions that it will be removed.
Therefore, are you planning to keep providing an option to explicitly define the server function as per our own desire (and OCD 😋)❔

Thank you!