* change team member limits for new v4 plans
* duplicate business plans with unlimited team members
We need to do this because we want grandfathered users to have unlimited
team members on business plans as well. Otherwise we'd have to build
overrides on the subscription level when checking the limit.
* refactor generating plan structs
* move Plan module into a separate file
* remove not needed conditions
* add generation field to plans
* sync the sanbox plan limits and features with plan generations
* implement displaying plan benefits
* add grandfathering notice
* plug in the real v3 business plan IDs
* optimize N/A text color for darkmode
* use String.to_existing_atom instead
Co-authored-by: Vini Brasil <vini@hey.com>
* Remove the unnecessary part of a comment
Co-authored-by: Vini Brasil <vini@hey.com>
* make the Plan.new function simpler
* use exlamation marks
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Co-authored-by: Vini Brasil <vini@hey.com>