[bug] Unable to use float values in tauri.conf.json for plugin configuration

[jamesWalker55]

Describe the bug

When writing a plugin, you can provide configurations through tauri.conf.json in the "plugins" section, e.g.:

{
  "build": {...},
  "package": {...},
  "tauri": {...},
  "plugins": {
    "configPlugin": {
      "audioPreview": { "enabled": true, "volume": 0.5 },
      ...
    }
  }
}

However, when the plugin section includes a float literal (e.g. 0.5), building fails with the following error:

error[E0277]: the trait bound `serde_json::Number: std::convert::From<f64>` is not satisfied
   --> src-tauri\src\main.rs:541:14
    |
541 |         .run(tauri::generate_context!())
    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::convert::From<f64>` is not implemented for `serde_json::Number`
    |
    = help: the following other types implement trait `std::convert::From<T>`:
              <serde_json::Number as std::convert::From<isize>>
              <serde_json::Number as std::convert::From<i8>>
              <serde_json::Number as std::convert::From<i16>>
              <serde_json::Number as std::convert::From<i32>>
              <serde_json::Number as std::convert::From<i64>>
              <serde_json::Number as std::convert::From<usize>>
              <serde_json::Number as std::convert::From<u8>>
              <serde_json::Number as std::convert::From<u16>>
            and 3 others
    = note: required for `f64` to implement `std::convert::Into<serde_json::Number>`
    = note: this error originates in the macro `tauri::generate_context` (in Nightly builds, run with -Z macro-backtrace for more info)

Reproduction

In a Tauri application, fill the tauri.conf.json's "plugins" section with an arbitrary plugin name, containing a float value somewhere in it, e.g.

  "plugins": {
    "configPlugin": {
      "audioPreview": { "enabled": true, "volume": 0.5 },
      ...
    }
  }

Expected behavior

Building succeeds.

Platform and versions

[✔] Environment
    - OS: Windows 10.0.19045 X64
    ✔ WebView2: 119.0.2151.58
    ✔ MSVC: Visual Studio Build Tools 2019
    ✔ rustc: 1.73.0 (cc66ad468 2023-10-03)
    ✔ cargo: 1.73.0 (9c4383fb5 2023-08-26)
    ✔ rustup: 1.26.0 (5af9b9484 2023-04-05)
    ✔ Rust toolchain: stable-x86_64-pc-windows-msvc (default)
    - node: 21.1.0
    - pnpm: 8.10.5
    - yarn: 1.22.19
    - npm: 10.2.0

[-] Packages
    - tauri [RUST]: 1.2.4
    - tauri-build [RUST]: 1.2.1
    - wry [RUST]: 0.23.4
    - tao [RUST]: 0.15.8
    - @tauri-apps/api [NPM]: 1.5.1
    - @tauri-apps/cli [NPM]: 1.5.6

[-] App

Stack trace

error[E0277]: the trait bound `serde_json::Number: std::convert::From<f64>` is not satisfied
   --> src-tauri\src\main.rs:541:14
    |
541 |         .run(tauri::generate_context!())
    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::convert::From<f64>` is not implemented for `serde_json::Number`
    |
    = help: the following other types implement trait `std::convert::From<T>`:
              <serde_json::Number as std::convert::From<isize>>
              <serde_json::Number as std::convert::From<i8>>
              <serde_json::Number as std::convert::From<i16>>
              <serde_json::Number as std::convert::From<i32>>
              <serde_json::Number as std::convert::From<i64>>
              <serde_json::Number as std::convert::From<usize>>
              <serde_json::Number as std::convert::From<u8>>
              <serde_json::Number as std::convert::From<u16>>
            and 3 others
    = note: required for `f64` to implement `std::convert::Into<serde_json::Number>`
    = note: this error originates in the macro `tauri::generate_context` (in Nightly builds, run with -Z macro-backtrace for more info)

Additional context

No response