fix: modpack export (#7119)

* fix: stale function call set_webview_visible

* fix: modpack export progress bar and add notification when done

* remove: force_no_zip64

* feat: switch to zip crate

* add typo exception

* fix: remove unit test (dont do)

---------

Signed-off-by: Truman Gao <106889354+tdgao@users.noreply.github.com>
Co-authored-by: Calum H. (IMB11) <contact@cal.engineer>

packages/app-lib/src/event/mod.rs

@@ -312,6 +312,10 @@ pub enum LoadingBarType {
         instance_id: String,
         instance_name: String,
     },
+    PackExport {
+        instance_id: String,
+        instance_name: String,
+    },
     ConfigChange {
         new_path: String,
     },