Allow for alternate definitions

[mapachurro]

One value prop of this glossary is to allow for comparative definitions. This is what Ethereum calls this; this is what Solana calls this; etc.

This PR implements fields, in the ./locales/ glossary files, and the scripts which create the term pages, the ability to list multiple definitions.

[mapachurro]

Terms added as alternates to English:

Terms added to 'alternate' (85):
address, airdrop, algorithm, altcoin, beacon-chain, bitcoin, block, block-height, block-reward, blockchain, bounty, buidl, centralized-exchange, coin, cold-storage, cryptocurrency, cryptography, custody, decentralized-application, decentralized-autonomous-organization, decentralized-exchange, difficulty, difficulty-bomb, digital-signature, encryption, erc-1155, erc-20, erc-721, exchange, finality, fork, fraud-proof, full-node, gas, gas-limit, genesis-block, github, gwei, halving, hash, immutability, interoperability, know-your-customer, latency, layer-2, library, lightning-network, liquidity, mainnet, malware, mempool, metadata, metaverse, mining, mint, node, nonce, off-chain, on-chain, oracle, phishing, plasma, private-key, proof-of-stake, proof-of-work, public-key, roadmap, rug-pull, satoshi-nakamoto, seed-phrase, sharding, slippage, smart-contract, solidity, stablecoin, testnet, token, token-lockup, transaction-id, trustless, turing-complete, wallet, wei, yield-farming, zk-snarks

An example of what this looks like: