Update delete account button spacing

Minor spacing change to the delete account button under `/account`. Seems like a small side effect from the typography components added in #16673.

https://github.com/gitpod-io/gitpod/blob/2d4f94634ce3178b224e62ac582dc005fc636f5a/components/dashboard/src/user-settings/Account.tsx#L93-L97

Cc @easyCZ because [relevant discussion](https://gitpod.slack.com/archives/C02EN94AEPL/p1680514715896819) (internal)

Cc @selfcontained because #16673

Author: gtsiolis

components/dashboard/src/user-settings/Account.tsx

@@ -91,7 +91,7 @@ export default function Account() {
                     </ProfileInformation>
                 </form>
                 <Heading2 className="mt-12">Delete Account</Heading2>
-                <Subheading>This action will remove all the data associated with your account in Gitpod.</Subheading>
+                <Subheading className="mb-4">This action will remove all the data associated with your account in Gitpod.</Subheading>
                 <Button type="danger.secondary" onClick={() => setModal(true)}>
                     Delete Account
                 </Button>