Remove maxTokenAge (#1255)

## Description:

Remove the `maxTokenAge` argument, as this prevents players from using
valid tokens on the final day of the 7-day session. The `jwtVerify`
function already verifies that the `exp` claim is in the future and the
`iat` claim is in the past, so there is no concern about using expired
tokens.

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced
- [x] I understand that submitting code with bugs that could have been
caught through manual testing blocks releases and new features for all
contributors

Co-authored-by: Scott Anderson <662325+scottanderson@users.noreply.github.com>

src/server/jwt.ts

@@ -31,7 +31,6 @@ export async function verifyClientToken(
       algorithms: ["EdDSA"],
       issuer,
       audience,
-      maxTokenAge: "6 days",
     });
     const result = TokenPayloadSchema.safeParse(payload);
     if (!result.success) {