Use strongly consistent reads if max-age indicates session less than 5 seconds old

[huntharo]

Motivations

• Using eventually consistent reads is great, except when the session was just updated, in which case we may be going from no-login info to having login info and it will be important to read the updated data

To-Do

• Add unit tests that mimic this case
• Implement the option to configure how long strongly consistent reads should be used for after session creation