Shorten too long descriptions in docs pages

[HonzaTuron]

Usually references like:

https://docs.apify.com/sdk/python/reference/class/Actor

https://docs.apify.com/sdk/python/reference/class/Configuration

Basically all long descriptions at https://docs.apify.com/llms.txt because it's pasted to meta description for such pages.

[jbartadev]

@TC-MO Could you please have a look at those?

[TC-MO]

Is there any specific character limit that we want to aim for?

[jbartadev]

Is there any specific character limit that we want to aim for?

@TC-MO The description is used as the page's meta description, which should follow Google's best practices