Updates and the component library come from GitHub

The update check reads the latest release from GitHub's API; its JSON
has the same tag_name and assets[].browser_download_url the reader
expects. Ely-GPUI-Components is fetched from ELY-Open-Source at the same
pinned commits.

Co-Authored-By: Claude <noreply@anthropic.com>

crates/ely-ui/src/updates.rs

@@ -18,7 +18,7 @@ use gpui::{
 };
 
 /// The release server's newest release, listed by its API.
-const LATEST: &str = "https://git.zacharyzhang.com/api/v1/repos/ZacharyZhang-NY/ElyOffice/releases/latest";
+const LATEST: &str = "https://api.github.com/repos/ELY-Open-Source/ElyOffice/releases/latest";
 /// The argument that runs this binary as the installer.
 const INSTALL: &str = "--ely-install-update";