feat: Save previous entries in feed settings

src/template_engine.rs

@@ -18,6 +18,7 @@ pub fn build(config: &Config, feed_store: &mut FeedStore) -> Result<()> {
 
     let mut context = tera::Context::new();
     let (feeds, entries): (HashMap<String, Feed>, _) = feed_store.collect(config.max_entries);
+    context.insert("config", config);
     context.insert("feeds", &feeds);
     context.insert("entries", &entries);
     context.insert("lang", &config.lang);