ui: move timeline view to its own file

Also add some thread methods for fetching new notes

Signed-off-by: William Casarin <jb55@jb55.com>

src/ui/mod.rs

@@ -11,6 +11,7 @@ pub mod profile;
 pub mod relay;
 pub mod side_panel;
 pub mod thread;
+pub mod timeline;
 pub mod username;
 
 pub use account_management::AccountManagementView;
@@ -24,6 +25,7 @@ pub use profile::{profile_preview_controller, ProfilePic, ProfilePreview};
 pub use relay::RelayView;
 pub use side_panel::{DesktopSidePanel, SidePanelAction};
 pub use thread::ThreadView;
+pub use timeline::TimelineView;
 pub use username::Username;
 
 use egui::Margin;