no refs
- price amount formatting was incorrectly calling `toFixed` method on a string, which is not needed as we already round off the amount before formatting
no refs
- price amount helper was previously always returning whole numbers after rounding-off amount values
- this change updates the behavior to show decimal values upto 2 places when the amount is not a whole number, and a whole number otherwise
refs https://github.com/TryGhost/Team/issues/715
Adds new modal and component to handle managing a list of products(tiers) in Admin behind the developer experiments flag. Also adds a new helper for stripe prices to convert amount from decimal value.
