…rings

- We need a distinction now for a past buy/sell that already occurred, vs the verb to buy/sell.
- Would incur a small cost to re-translate, but worth the organizational benefits to remove duplicates at the same time. Most of the localizations for the `TX_ACTION_LABEL_MAP` renamed keys are not translated, anyway.
- Only the `buy_crypto_modal_buy_action` had translations, which were ported over for the interim while we wait for translations.