Fix #464 (#467)

Co-authored-by: Geometrically <18202329+Geometrically@users.noreply.github.com>

src/util/ext.rs

@@ -15,7 +15,7 @@ pub fn get_image_content_type(extension: &str) -> Option<&'static str> {
 pub fn project_file_type(ext: &str) -> Option<&str> {
     match ext {
         "jar" => Some("application/java-archive"),
-        "zip" => Some("application/zip"),
+        "zip" | "litemod" => Some("application/zip"),
         "mrpack" => Some("application/x-modrinth-modpack+zip"),
         _ => None,
     }