Replacing set_dir! string literal input by expression

[Kbz-8]

Just a small PR to be able to do things like :

let mut path = std::env::home_dir().expect("nah");
path.push(".local/share/myapp/");
dioxus_storage::set_dir!(path);

I am not sure about the dioxus versions bump tho.

[Kbz-8]

up !

[chunleng]

I am faced with the situation where Android doesn't work because the default is not writing to an accessible path. (Not sure if it's related to this issue)

This PR will definitely be a good workaround so that a correct path derived programatically can be included

[chunleng]

Rather than having an expr to be used freely on set_directory, why not just extend the current $path:literal to use an expr?

Something like

    ($path: expr) => {
        #[cfg(not(target_family = "wasm"))]
        $crate::storage::set_directory(std::path::PathBuf::from(format!("{}", $path)))
    };

[Kbz-8]

wouldn't it force users to do dioxus_storage::set_dir!(path.display()); ?

[ealmloff]

std::path::PathBuf::from($path) should work with Paths, PathBufs and &strs