Portfolio domain requests: Don't show delete button when the user doesn't have permissions, and fix spacing for the domain table

[zandercymatics]

Current Behavior

Currently, when the user only has the view permission they can use the delete button on started domains. Additionally, the spacing is a bit wonky when the start a new domain request button appears.

Expected Behavior

The delete button is hidden and permissions block the user from accessing it when they are not permissioned to do so.
Additionally, the spacing is corrected when the button is hidden.

Steps to Reproduce

1. With the admin role, start some new domain requests
2. Add yourself to a portfolio as a member, but only with the view all requests permission. Note the delete button still existing

Environment

No response

Additional Context

No response

Issue Links

Introduced in this PR