Feat: CLI Settings

[DogeDark]

Creates a setting system with 3 priorities:

1. CLI Flags (e.g. --open or --hot-reload)
2. Project-level config (e.g. Settings in Dioxus.toml)
3. Global settings stored in local data.

Additions

• dx config set_global command for always-hot-reload and always-open-browser
• [cli_settings] key in Dioxus.toml with fields always_hot_reload and always_open_browser
• Storage of global settings in a toml.

This PR is slightly breaking with changes to the CLI commands and the hot reload setting moved from [application] to [cli_settings].

[DogeDark]

Looks like the clippy issue is fixed in Autoformat rsx PR. This is ready for review.