fix: finalized proposal if accepted or rejected

[ryanchristo]

Closes: #93

This pull request updates "finalized" based on whether the proposal is accepted or rejected rather than voting closed.

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Proposal Examples:

• https://deploy-preview-113--regen-groups-ui.netlify.app/10/proposals/53 (rejected)
• https://deploy-preview-113--regen-groups-ui.netlify.app/10/proposals/50 (passed)
• https://deploy-preview-113--regen-groups-ui.netlify.app/10/proposals/59 (submitted)

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[blushi]

It seems like this also Closes: https://github.com/regen-network/groups-ui/issues/92 See my comment: https://github.com/regen-network/groups-ui/issues/92#issuecomment-1649765479