feat: SDK API to trigger campaign

[ChrisvanChip]

Is your feature request related to a problem? Please describe.
I'm interested in using the ongoing campaign feature to engage users during their onboarding journey. Unfortunately, the only possibility is to trigger by page visit, which isn't really versatile and not useful on Single-Page Applications.

Describe the solution you'd like
I would like to trigger a campaign using JavaScript. A proposed function would be:
window.$chatwoot.triggerCampaign('trial_started')

Describe alternatives you've considered
A hacky workaround would involve creating an element in the widget to simulate a message from the bot. It's not possible to update the messages without editing the code and it isn't update-friendly either.

[sojan-official]

ref: #3992

[brundles]

I agree - this is very much needed

[brundles]

@muhsin-k - This would be a good starting point until the rest of tasks in #5845 are done.

Ie for @ChrisvanChip and others (myself included) we could temporarily fix many issues via the SDK if this was available until more complex rules are done.

[brundles]

@muhsin-k - any news on this? :)

[brundles]

Hi @sojan-official - is there any news on this?

I imagine that doing something like window.$chatwoot.triggerCampaign('trial_started') would not be very complicated. And it would give us a minimum way of handling these things.

I would love to help if I can do anything to speed up this part of the process?