Could you please clarify for me if it's possible to securely store Arweave tokens within the MetaMask wallet? I've heard that MetaMask is a popular choice for managing cryptocurrency assets, but I'm not entirely sure if it supports Arweave specifically. Could you enlighten me on this matter? Would storing Arweave on MetaMask provide the same level of security as other cryptocurrencies it supports? Also, are there any special steps or considerations I should take into account when adding Arweave to MetaMask? Thank you for your assistance in clarifying this for me.