//! Contains the [`VimModeSetting`] used to enable/disable Vim mode.//!//! This is in its own crate as we want other crates to be able to enable or//! disable Vim mode without having to depend on the `vim` crate in its//! entirety. use anyhow::Result;use gpui::AppContext;use settings::{Settings, SettingsSources}; /// Initializes the `vim_mode_setting` crate.pub fn init(cx: &mut AppContext) {    VimModeSetting::register(cx);} /// Whether or not to enable Vim mode.////// Default: falsepub struct VimModeSetting(pub bool); impl Settings for VimModeSetting {    const KEY: Option<&'static str> = Some("vim_mode");     type FileContent = Option<bool>;     fn load(sources: SettingsSources<Self::FileContent>, _: &mut AppContext) -> Result<Self> {        Ok(Self(            sources                .user                .or(sources.server)                .copied()                .flatten()                .unwrap_or(sources.default.ok_or_else(Self::missing_default)?),        ))    }}