Single Judge Application; Davis v. McDonough, 34 Vet.App. 131, 132 (2021) (“Under 38 C.F.R. § 3.156(b), when new and material evidence is submitted within the appeal period following a VA decision on a claim, the evidence must be considered in connection with that claim,” and “if VA fails to undertake that consideration, the claim remains pending until it does. Thus, when this rule is implicated, it can require the assignment of effective dates for benefits ultimately granted that are much earlier than would otherwise obtain.”);