feat: more role backend and admin/writer roles additions and adjustments

web/src/views/__tests__/IntegrationView.spec.ts

@@ -395,7 +395,7 @@ describe('Group scrolled, one card expanded', () => {
 		expect(upload.text()).toContain('the file must be a PNG, JPEG, WEBP, or SVG image')
 
 		const invite = await expand(wrapper, 'POST /v1/user/invite')
-		expect(invite.text()).toContain('Only the owner can do this.')
+		expect(invite.text()).toContain('missing_permission')
 		expect(invite.text()).toContain('This route is rate limited. Too many requests answer 429.')
 		expect(invite.text()).toContain("There's already a pending invite for this address.")
 	})