fix: RemoveKind is triggered on config updates

Author: TheGB0077

crates/but-settings/src/watch.rs

@@ -1,6 +1,8 @@
 use crate::AppSettings;
 use anyhow::Result;
-use notify::{Config, Event, RecommendedWatcher, RecursiveMode, Watcher, event::ModifyKind};
+use notify::{
+    Config, Event, RecommendedWatcher, RecursiveMode, Watcher, event::ModifyKind, event::RemoveKind,
+};
 use std::ops::{Deref, DerefMut};
 use std::path::Path;
 use std::{
@@ -130,7 +132,20 @@ impl AppSettingsWithDiskSync {
                             send_event(update)?;
                         }
                     }
-
+                    Ok(Ok(Event {
+                        kind: notify::event::EventKind::Remove(RemoveKind::File),
+                        ..
+                    })) if cfg!(target_os = "linux") => {
+                        let Ok(mut last_seen_settings) = snapshot.write() else {
+                            continue;
+                        };
+                        if let Ok(update) = AppSettings::load(&config_path) {
+                            tracing::info!("settings.json modified; refreshing settings");
+                            *last_seen_settings = update.clone();
+                            watcher.watch(&config_path, RecursiveMode::NonRecursive)?;
+                            send_event(update)?;
+                        }
+                    }
                     Err(_) => {
                         tracing::error!(
                             "Error watching config file {:?} - watcher terminated",