A hack to display organization 1642's planter list

Currently, the planter list on this page is empty: https://map.treetracker.org/organizations/1642
This is correct, because the organization 1642 does have no planter, but the 1642 is a special org in the system, it is a workaround for org 178 (freetown) to display the actual tree rather than capture, we manually put all capture into this org 1642, so we need to do a hack (hard code) workaround for displaying the planter list, which means: the API: `/planters?organization_id=1642` should actually return the result of 178.

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