Monitor config as calloop source; use for screen_off_time

Still not sure best way to configure multiple idle times.

cosmic-idle-config/src/lib.rs

@@ -1,23 +1,16 @@
 use cosmic_config::{cosmic_config_derive::CosmicConfigEntry, CosmicConfigEntry};
 use serde::{Deserialize, Serialize};
 
-#[derive(Debug, Deserialize, Serialize, Clone, PartialEq)]
-pub enum IdleAction {
-    ScreenOff,
-    Command(Vec<String>),
-}
-
 #[derive(Debug, Deserialize, Serialize, Clone, CosmicConfigEntry)]
 pub struct CosmicIdleConfig {
-    pub time: u32,
-    pub action: IdleAction,
+    /// Screen off idle time, in ms
+    pub screen_off_time: u32,
 }
 
 impl Default for CosmicIdleConfig {
     fn default() -> Self {
         Self {
-            time: 60 * 10,
-            action: IdleAction::ScreenOff,
+            screen_off_time: 10 * 60 * 1000,
         }
     }
 }