The newly elected EC must be able to govern (propose + vote)

[otoole-brendan]

Delivery of this functionality may be via #10133 and #10134. This ticket serves to explicitly validate the functionality through UI testing

Test plan:
Use Synpress to test interaction the interaction between EC member and Econ Gov UI

[rabi-siddique]

#10133 was completed in PR #10164, and #10134 was completed in PR #10166.

The Synpress end-to-end tests were done in #135 and tracked in issue #134.

[dckc]

Struggles with a3p testing suggests that sort of testing should be part of the test plan for this functionality.

• test(a3p): create a3p test for replace electorate core eval #10241

In particular, we're currently stuck on a very strange corner-case where an EC member fails to accept their invitation.

• odd {x, y, z} >= {z} failure in AmountMath.isGTE with AssetKind.SET #10292
• failure in elementsIsSuperset({x, y, z}, {z}) endojs/endo#2588