bugfixes, docs, and pass clippy

packages/tui/src/config.rs

@@ -1,6 +1,18 @@
-#[derive(Default, Clone, Copy)]
+#[derive(Clone, Copy)]
 pub struct Config {
     pub rendering_mode: RenderingMode,
+    /// Should the terminal quit when the user presses `ctrl+c`?
+    /// To handle quiting on your own, use the [crate::TuiContext] root context.
+    pub ctrl_c_quit: bool,
+}
+
+impl Default for Config {
+    fn default() -> Self {
+        Self {
+            rendering_mode: Default::default(),
+            ctrl_c_quit: true,
+        }
+    }
 }
 
 #[derive(Clone, Copy)]