feat: refactor frontend configuration

Signed-off-by: kjuulh <contact@kjuulh.io>

crates/cuddle-please-frontend/src/gatheres/stdin.rs

@@ -0,0 +1,19 @@
+use serde::Deserialize;
+
+use crate::stage0_config::PleaseConfigBuilder;
+
+pub fn get_config_from_stdin<'d, T>(stdin: &'d str) -> PleaseConfigBuilder
+where
+    T: Deserialize<'d>,
+    T: Into<PleaseConfigBuilder>,
+{
+    match serde_yaml::from_str::<'d, T>(stdin) {
+        Ok(config) => {
+            return config.into();
+        }
+        Err(e) => {
+            tracing::debug!("stdin doesn't contain a valid please config: {}", e);
+        }
+    }
+    PleaseConfigBuilder::default()
+}