todo: basic endpoint testing

[iuioiua]

Before #20 can be actioned, we must validate that route handlers mostly behave within expectations. This can be done simply by asserting that handlers respond with the expected HTTP status code, a body, basic headers, etc. I want to emphasis that this testing only needs to be basic. Some of the routes we should cover include (but aren't exclusive to):

• GET /
• GET /blog
• GET /pricing
• GET /signin and other auth pages
• GET /account (redirect to sign-page)

For guidance, see https://fresh.deno.dev/docs/examples/writing-tests

[mbhrznr]

i'd tackle this one!