Fix pack URL validation, Version file update route, and spaces in file download URLs (#275)

src/routes/version_creation.rs

@@ -633,7 +633,9 @@ pub async fn upload_file(
             content_type,
             &format!(
                 "data/{}/versions/{}/{}",
-                project_id, version_number, file_name
+                project_id,
+                version_number,
+                urlencoding::encode(&file_name)
             ),
             data.freeze(),
         )

src/routes/version_file.rs

@@ -306,7 +306,6 @@ pub async fn delete_file(
 
 #[derive(Deserialize)]
 pub struct UpdateData {
-    pub hash: (String, String),
     pub loaders: Vec<Loader>,
     pub game_versions: Vec<GameVersion>,
 }