add CorsStore

src/network/HttpClient.zig

@@ -243,7 +243,10 @@ pub fn init(self: *Client, app: *lp.App) !void {
             .network = network,
             .single_flight = .init(allocator),
         },
-        .cors = .{ .single_flight = .init(allocator) },
+        .cors = .{
+            .network = network,
+            .single_flight = .init(allocator),
+        },
         .url_blocklist = url_blocklist,
         .arena_pool = &app.arena_pool,
     };