feat(coinmarket): refactor buy/sell/exchange detail

[adderpositive]

Description

A small refactoring mainly focused on reducing duplicities:

• The files useCoinmarketBuyDetail.ts, useCoinmarketSellDetail.ts and useCoinmarketExchangeDetail.ts - merged into one file useCoinmarketDetail.ts and moved to the /coinmarket folder.
• Created useCoinmarketWatchTrade.ts in the /coinmarket folder with the useCoinmarketWatchTrade hook which is integrates three very similar functions - useWatchBuyTrade, useWatchSellTrade and useWatchExchangeTrade.
• Created watchTrade function in invityAPI.ts, combining watchBuyTrade, watchSellTrade and watchExchangeTrade functions.
• Used types from the newly created file coinmarketDetail.ts in the /types folder (a focus on merging types to one place).
• Generally, using folders to separate Coinmarket from other features.
• Spend and Savings are not included and are not going to be further supported.