Reused labelMessage function from label.ts to add and remove UNREAD labels from thread
added a button in ActionButtons where a user can Read or Unread a mail
Mark as read when a user open a mail
corrected all variable naming and removed any unused imports
closes #81
Reused labelMessage function from label.ts to add and remove UNREAD labels from thread added a button in ActionButtons where a user can Read or Unread a mail Mark as read when a user open a mail
![contribute:issue #81 (2)](https://github.com/elie222/inbox-zero/assets/91962940/0683a956-1fd6-4ff4-875f-4a25a841465f)
corrected all variable naming and removed any unused imports closes #81