Profile imports (#348)

* temporary switch

* draft; working unmanaged + modrinth

* working update

* added checkerg

* fixed io merge issue

* Added api handling

* tidying up

* reverted playground changes

* fixed js issue

* fixed merge issues

theseus/src/util/io.rs

@@ -135,6 +135,21 @@ pub async fn rename(
         })
 }
 
+// copy
+pub async fn copy(
+    from: impl AsRef<std::path::Path>,
+    to: impl AsRef<std::path::Path>,
+) -> Result<u64, IOError> {
+    let from = from.as_ref();
+    let to = to.as_ref();
+    tokio::fs::copy(from, to)
+        .await
+        .map_err(|e| IOError::IOPathError {
+            source: e,
+            path: from.to_string_lossy().to_string(),
+        })
+}
+
 // remove file
 pub async fn remove_file(
     path: impl AsRef<std::path::Path>,