Shorten inline helptext for ecommerce checkbox, #PG-3647

[araichyk]

Description:

This PR addresses the overly long description for the "Is Ecommerce View" checkbox when creating or editing a Matomo Analytics tag with Pageview tracking type. The changes include:

1. Shortening the existing description text to improve readability.
2. Implementing conditional text based on whether the setup is cloud-based or on-premises.

Addresses PG-3647

Review

• [ ] Functional review done
• [ ] Potential edge cases thought about (behavior of the code with strange input, with strange internal state or possible interactions with other Matomo subsystems)
• [ ] Usability review done (is anything maybe unclear or think about anything that would cause people to reach out to support)
• [ ] Security review done
• [ ] Wording review done
• [ ] Code review done
• [ ] Tests were added if useful/possible
• [ ] Reviewed for breaking changes
• [ ] Developer changelog updated if needed
• [ ] Documentation added if needed
• [ ] Existing documentation updated if needed

[araichyk]

@AltamashShaikh Thank you for explaining that in detail! I've implemented the changes as suggested and pushed them up. They seem to work correctly in my local environment.

I've also created a corresponding PR for the Cloud plugin: https://github.com/innocraft/plugin-Cloud/pull/905.