Bugzilla

### Beta/Release Uplift Approval Request
* **User impact if declined**: There is no impact to users, as this patch introduces a nimbus var, to switch types of sponsored suggestions. We would like the ability to experiment in 124
* **Is this code covered by automated tests?**: Yes
* **Has the fix been verified in Nightly?**: No
* **Needs manual test from QE?**: No
* **If yes, steps to reproduce**: 
* **List of other uplifts needed**: None
* **Risk to taking this patch**: Low
* **Why is the change risky/not risky? (and alternatives if risky)**: We introduced a nimbus var to switch types of sponsored suggestions, but it defaults to false, so there should not be any changes to existing behaviour, unless the variable is changed in an experiment.
* **String changes made/needed**: 
* **Is Android affected?**: Yes

adding beta request to the wrong thing *edited*