Finalize expired or failed proposal

[Tarnadas]

Hey,

when a proposal expired its status stays as "InProgress" as long as it doesn't get finalized. See e.g. this proposal:
https://near.org/astraplusplus.ndctools.near/widget/home?page=dao&tab=proposals&daoId=shitzu.sputnik-dao.near&proposalId=33

There can also be failed proposals. A FunctionCall proposal gets into failed status, when it has been approved but the tx failed, e.g. here:
https://near.org/astraplusplus.ndctools.near/widget/home?page=dao&tab=proposals&daoId=shitzu.sputnik-dao.near&proposalId=27

In order to finalize a proposal you can use act_proposal function and send Action::Finalize:
https://github.com/near-daos/sputnik-dao-contract/blob/main/sputnikdao2/src/proposals.rs#L585-L592

There are also edge cases explained:

• if proposal expired during the failed state it will be marked as expired.
• if the number of votes in the group has changed (new members has been added) the proposal can loose it's approved state.

Nevertheless no matter about the edge case, any expired or failed proposal should be able to be finalized, which should be really easy to add. There just needs to be a button to prompt the user to send the act_proposal tx.