add: ability to enable pages instead of infinite scrolling

crates/core/src/model/auth.rs

@@ -231,6 +231,9 @@ pub struct UserSettings {
     /// A list of strings the user has muted.
     #[serde(default)]
     pub muted: Vec<String>,
+    /// If timelines are paged instead of infinitely scrolled.
+    #[serde(default)]
+    pub paged_timelines: bool,
 }
 
 fn mime_avif() -> String {