Force clear the entitlement cache and update the users entitlements when trial_activated=true appears in the URL query string.

Problem:
Entitlement currently caches in the console for 10 minutes. We send users from console to get a free trial from Red Hat Product Trial system, but when they return after activating their trial the entitlement is still cached and they aren't able to use the service.

Example:

1. Click "Start a free trial" on: https://console.redhat.com/application-services/acs/overview
2. Activate your free trial by clicking the button on the RHPT page (redhat.com/acstrial)
3. When you return to https://console.redhat.com/application-services/acs/overview?trial_activated=true you aren't able to use ACS yet because entitlement is still cached from the first page view

Other Notes:

• The Red Hat product trial system can use this pattern in the future for other product trials that depend on entitlements updating immediately after a new trial is activated (but should only be used when necessary). 
• Ansible currently uses an alternative workaround for their trial
• I'm open to other options - this just seemed the most straight forward and fairly reasonable