Add full-server activity to iOS home (#65)

crates/app/src/lib.rs

@@ -86,9 +86,16 @@ pub struct Settings {
 #[derive(uniffi::Object)]
 pub struct GotchaCore {
     state: Mutex<State>,
+    server_activity: tokio::sync::Mutex<Option<ServerActivitySession>>,
     startup_error: Option<String>,
 }
 
+struct ServerActivitySession {
+    server_id: String,
+    next_page: u32,
+    pager: gotcha_gitea::ServerActivityPager,
+}
+
 fn validate_repository<'a>(
     owner: &'a str,
     repository: &'a str,