`no-inline-styles`: Change the default value for `allowTransitions` to true

[marekdedic]

The no-inline-styles rule has an option controlling whether it reports the use of transitions as well. This was largely due to the fact that the built-in Svelte 4 transitions used inline styles and thus using them wasn't "safe" in a no-inline-styles webpage.

With Svelte 5, transitions apparently no longer use inline styles. Thus, I'd like to change the default behaviour of the rule to allowing transitions (I think we can keep the option to disallow them for those who want it.)

[ota-meshi]

Wow, I didn't know that! The rule changes sound good to me!