chore: use the alias address and the current role

The package author email was a Gmail address. The site already contacts
through hello@ruisaraiva.dev, an alias forwarded to that inbox, and the
point of the alias is that a published field can be rotated without
touching the real mailbox — so the package field uses it too.

The credits still described Rui as a Full-Stack Developer, which was true
when the tool was built in 2020. Augusto's and Miguel's roles are left as
they are.

components/favycon-info/index.tsx

@@ -52,7 +52,7 @@ const people = [
 	{
 		handle: 'ruisaraiva.dev',
 		name: 'Rui Saraiva',
-		role: 'Full-Stack Developer',
+		role: 'Principal Engineer',
 		social: 'website' as const,
 		photo: ruiSaraiva,
 	},

package.json

@@ -18,7 +18,7 @@
 	],
 	"author": {
 		"name": "Rui Saraiva",
-		"email": "ruisaraiva19@gmail.com",
+		"email": "hello@ruisaraiva.dev",
 		"url": "https://ruisaraiva.dev/"
 	},
 	"license": "MIT",