Feature request - Upgrade Angular version to v19

[jackmercy]

REQUIRED: Before filing a feature request

Change each [ ] to [x] when you have done it.

• My issue title starts with [feature request]
• I have thoroughly read through the README, and the dragula docs.
• I have searched through the ng2-dragula issues for related problems, including closed issues, and I didn't find anything.

Is your feature request related to a problem? Please describe.

Recently Angular has upgrade to v19 which made standalone: true is default, which cause in incompatible when using this library and mock for testing.
Please upgrade the angular version to latest.

[RahulPatilFullStack]

We are using the ng2-dragula library in our project. However, after upgrading to Angular version 19, we are facing issues because ng2-dragula does not support Angular 19. Could you please provide an update on when issue #1113 will be merged and the final version will be released?

Thank you!