Upgrade to Actix V2, bump SQLX version, code cleanup, intergrate ratelimiter (#288)

* Upgrade to Actix V2, bump SQLX version, code cleanup, intergrate ratelimiter

* Add pack file path validation

* Fix compilation error caused by incorrect merge

src/util/auth.rs

@@ -3,7 +3,7 @@ use crate::database::models;
 use crate::database::models::project_item::QueryProject;
 use crate::models::users::{Role, User, UserId};
 use crate::routes::ApiError;
-use actix_web::http::HeaderMap;
+use actix_web::http::header::HeaderMap;
 use actix_web::web;
 use serde::{Deserialize, Serialize};
 use sqlx::PgPool;

src/util/ext.rs

@@ -16,7 +16,7 @@ pub fn project_file_type(ext: &str) -> Option<&str> {
     match ext {
         "jar" => Some("application/java-archive"),
         "zip" => Some("application/zip"),
-        "mrpack" => Some("application/zip"),
+        "mrpack" => Some("application/x-modrinth-modpack+zip"),
         _ => None,
     }
 }