feat: add alternating autotiling

toml-config/src/config.rs

@@ -600,6 +600,14 @@ pub struct Config {
     pub simple_im: Option<SimpleIm>,
     pub fallback_output_mode: Option<FallbackOutputMode>,
     pub mouse_follows_focus: Option<bool>,
+    pub scratchpads: Vec<Scratchpad>,
+    pub autotile: Option<bool>,
+}
+
+#[derive(Debug, Clone)]
+pub struct Scratchpad {
+    pub name: String,
+    pub exec: Option<Exec>,
 }
 
 #[derive(Debug, Error)]