feat: add /guilds/{uuid}members

Also makes it return user object with the query

src/api/v1/guilds/uuid/members.rs

@@ -0,0 +1,30 @@
+use crate::{
+    api::v1::auth::check_access_token, error::Error, structs::Member, utils::{get_auth_header, global_checks}, Data
+};
+use ::uuid::Uuid;
+use actix_web::{HttpRequest, HttpResponse, get, web};
+
+#[get("{uuid}/members")]
+pub async fn get(
+    req: HttpRequest,
+    path: web::Path<(Uuid,)>,
+    data: web::Data<Data>,
+) -> Result<HttpResponse, Error> {
+    let headers = req.headers();
+
+    let auth_header = get_auth_header(headers)?;
+
+    let guild_uuid = path.into_inner().0;
+
+    let mut conn = data.pool.get().await?;
+
+    let uuid = check_access_token(auth_header, &mut conn).await?;
+
+    global_checks(&data, uuid).await?;
+
+    Member::check_membership(&mut conn, uuid, guild_uuid).await?;
+
+    let members = Member::fetch_all(&data, guild_uuid).await?;
+
+    Ok(HttpResponse::Ok().json(members))
+}