clean warnings and add tests

tests/test_links_to_rewrite.rs

@@ -0,0 +1,19 @@
+use mini_admin_bot::rewrite_links;
+
+mod mocks;
+#[test]
+pub fn test_contain_links() {
+    assert_eq!(
+        false,
+        rewrite_links::check_contain_links::contain_links(
+            mocks::teloxide_mocks::generate_msg_mock("hola")
+        )
+    );
+
+    assert_eq!(
+        true,
+        rewrite_links::check_contain_links::contain_links(
+            mocks::teloxide_mocks::generate_msg_mock("https://x.com")
+        )
+    );
+}