chore(doc): implement remainder of documentation

src/routes/servers/ban_remove.rs

@@ -1,5 +1,9 @@
 use revolt_quark::{models::User, perms, Db, EmptyResponse, Permission, Ref, Result};
 
+/// # Unban user
+///
+/// Remove a user's ban.
+#[openapi(tag = "Server Members")]
 #[delete("/<server>/bans/<target>")]
 pub async fn req(db: &Db, user: User, server: Ref, target: Ref) -> Result<EmptyResponse> {
     let server = server.as_server(db).await?;