Replace the danger-callout with help text
## Problem to solve Older `danger-callout` components are being used to share constraints with users for **personal access tokens** and **ssh key** expiration dates, which do not match guidelines in Pajamas. | Personal access tokens | SSH keys | | ------ | ------ | | ![image](/uploads/f359e1bb8cc77ec48d33b3fc5fde3bf5/image.png) | ![image](/uploads/a1253063006cf89d4c875da0be0eb370/image.png) | ## Proposal - Remove the `danger-callout` and replace with help text. - Update the help and description text - The date picker should prevent picking invalid dates. Should a user input an invalid date, they should get an error message | Personal access tokens | SSH keys | | ------ | ------ | | ![Personal_Access_Token](/uploads/4b4777d64e114f85ae74215550ef551e/Personal_Access_Token.png) |![SSH_Key](/uploads/6a86f7b9b26740279a7d0094ab213870/SSH_Key.png)|
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