fix: add actionable error when bb verify cannot find vk file#19398

johnathan79717 merged 2 commits intomerge-train/barretenbergAztecProtocol/aztec-packages:merge-train/barretenbergfrom

fix/actionable-vk-error-messageAztecProtocol/aztec-packages:fix/actionable-vk-error-messageCopy head branch name to clipboard