push one or all comments into a list

- push all new comments in a special list
- push one comment

When the user pushes a comment:
- the comment inside the editor will change to this format
  - `// {{cardId}} {{comment}}`
- Cards which has been pushed as a comment have a special function
  - you can use `Shift+Click` to jump to the comment in the file 
  - you can use `Click` to jump to the normal tasks-tab