[FEAT] Consider alternative icon for timer events

[tbouffard]

Rationale

Try to use timer icon with a simplest design to clarify the Timer Event rendering.

Examples

Taken from https://bonitasoft.developpez.com/tutoriels/business-process-management/guide-ultime-bpmn2/ (french)

From https://tilda.cc/free-icons/

Tasks

• [ ] Please follow the BPMN Support how-to
• [ ] Choose the icon ⚠️ Thanks to discuss with us on this issue to propose your different renderings before to implement one of them.
• [ ] Use the new icon in the implementation

[AhmadMSadek]

Hello, I'm interested in this issue. Thanks

[csouchet]

Hi 👋🏻 Thank you for your interest. I assigned you this issue 🙂 If you need any helps, don't hesitate to contact us 😉

[tbouffard]

ℹ️ Discussions about some icons were done on 23th and 25th October 2022 in the #hacktoberfest Discord channel.

[tbouffard]

@AhmadMSadek Hello, do you still intend to work on this issue? We haven't seen any activity in the last 2 months.

[AhmadMSadek]

Dear Thomas,I'm very sorry, I was busy a little bit. Unfortunately, I will not be able to continue my task.Ahmad.

[tbouffard]

Thanks for your reply @AhmadMSadek, there is no problem. Feel free to contact us in the future if you want to try to contribute again on any topic.