Updates to visiting grant policy in light of the COVID-19 travel updates

Why is this change being made?

Opening a WIP MR for @rschulman to make changes to reflect the COVID-1p travel update

Opening a WIP MR for @rschulman to make changes to reflect the COVID-1p travel update

Does this MR meet the acceptance criteria?

Yes

Assign to DRI

• Did you assign this change to the correct DRI of the page or information you are changing?

Conformity

• Added description to this MR explaining the reasons for the proposed change, per say-why-not-just-what