feat: add search filter, refactor params

src/param/mod.rs

@@ -0,0 +1,20 @@
+mod stream_filter;
+
+pub mod locale;
+pub mod search_filter;
+
+pub use locale::{Country, Language};
+pub use stream_filter::StreamFilter;
+
+/// Channel video sort order
+#[derive(Default, Debug, Copy, Clone, PartialEq, Eq)]
+#[non_exhaustive]
+pub enum ChannelOrder {
+    /// Output the latest videos first
+    #[default]
+    Latest,
+    /// Output the oldest videos first
+    Oldest,
+    /// Output the most viewed videos first
+    Popular,
+}