ensure multiple agent join the same sensemaker network

[weswalla]

currently, whenever the sensemaker cell is cloned, each agent clones it into a separate network space, because they each use their own pub key as the community activator property:

applet-template/ui/src/provider-app-test-harness.ts

Line 68 in b98c1c7

community_activator: serializeHash(sensemakerCell.cell_id[1])

This prevents then from being in the same sensemaker network.

[weswalla]

solved this issue in the todo-applet: neighbour-hoods/todo-applet#6