Improve/extend chat functionality

- Allow it to close/delete a full chat with a user - improve usability of the text field (the text field is currently extending horizontally instead of vertically) - Integrate an emoji tab to text field (similar to messengers like WhatsApp) - Cite function (similar to messengers) - Safety: When a user clicks a Non-stats.fm or Spotify link within the chat, make the user confirm to leave the app before be redirected externally