Annotations on comment attachments

[aleksbobic]

If a user attaches something to a comment they should be able to annotate it using text or by drawing on it. One option would be to use something like: https://github.com/vinothpandian/react-sketch-canvas for enabling annotations.

User flow:

1. Adds comment
2. Clicks "add attachement"
3. A popup shows up asking them to select one of the multiple widgets in small or large form (in case of small the widget screenshot size should be increased x3 instead of x2)
4. They can draw on the image on one side and write the comment text on the other.

Concerns:

1. Might be annoying for users to always deal with a popup (what if I don't want to annotate and an image is enough?)