Added default update server

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ostiary"
-version = "1.0.8"
+version = "1.0.9"
 edition = "2024"
 
 [dependencies]

src/config.rs

@@ -61,10 +61,22 @@ impl Config {
             server_url: server_url.to_string(),
             timeout_sec: 10,
             theme: default_theme(),
-            update_api: None,
+            update_api: Some("https://git.vainend.com/api/v1/repos/admin/ostiary".to_string()),
         };
+        let contents = format!(
+            r#"server_url = "{}"
+timeout_sec = {}
+update_api = "https://git.vainend.com/api/v1/repos/admin/ostiary"
+
+[theme]
+selected_bg = "{}"
+"#,
+            config.server_url,
+            config.timeout_sec,
+            config.theme.selected_bg,
+        );
         fs::create_dir_all(path.parent().unwrap())?;
-        fs::write(&path, toml::to_string_pretty(&config)?)?;
+        fs::write(&path, contents)?;
         Ok(config)
     }
 }