rearrange configuration to be closer to where it's consumed

src/actions/print.rs

@@ -1,7 +1,13 @@
-use crate::config::PrintConfiguration;
 use crate::context::Context;
+use serde::{Deserialize, Serialize};
 use std::rc::Rc;
 
+#[derive(Serialize, Deserialize, Default, Clone)]
+pub struct PrintConfiguration {
+    #[serde(default)]
+    pub text: String,
+}
+
 pub fn print(context: Rc<Context>, configuration: &PrintConfiguration) {
     println!("{}", context.stamp(&configuration.text));
 }