fix: tally grpc query

[czarcas7ic]

Closes: #XXX

What is the purpose of the change

For the grpc query, we used to just log errors and continue. During the sdk v50 upgrade, we for some reason changed to returning errors. This brings back the old logic.

Pre sdk v50 logic for comparison

osmosis/x/superfluid/keeper/stake.go

Lines 551 to 594 in 8c89343

	for i, lock := range synthlocks {
	// get locked coin from the lock ID
	interim, ok := k.GetIntermediaryAccountFromLockId(ctx, lock.UnderlyingLockId)
	if !ok {
	continue
	}
	lock, err := k.lk.GetLockByID(ctx, lock.UnderlyingLockId)
	if err != nil {
	ctx.Logger().Error("lockup retrieval failed with underlying lock", "Lock", lock, "Error", err)
	continue
	}
	coin, err := lock.SingleCoin()
	if err != nil {
	ctx.Logger().Error("lock fails to meet expected invariant, it contains multiple coins", "Lock", lock, "Error", err)
	continue
	}
	// get osmo-equivalent token amount
	amount, err := k.GetSuperfluidOSMOTokens(ctx, interim.Denom, coin.Amount)
	if err != nil {
	ctx.Logger().Error("failed to get osmo equivalent of token", "Denom", interim.Denom, "Amount", coin.Amount, "Error", err)
	continue
	}
	// get validator shares equivalent to the token amount
	valAddr, err := sdk.ValAddressFromBech32(interim.ValAddr)
	if err != nil {
	ctx.Logger().Error("failed to decode validator address", "Intermediary", interim.ValAddr, "LockID", lock.ID, "Error", err)
	continue
	}
	validator, found := k.sk.GetValidator(ctx, valAddr)
	if !found {
	ctx.Logger().Error("validator does not exist for lock", "Validator", valAddr, "LockID", lock.ID)
	continue
	}
	shares, err := validator.SharesFromTokens(amount)
	if err != nil {
	// tokens are not valid. continue.
	continue
	}

[nicolaslara]

This makes sense.

[Jeongseup]

Thank you so much