[FEATURE] Implement Feature to Track How Long People are Staying on Their Click

[jialincheoh]

Summary
Implement a feature whereby we know how long the users stay on their click.

Description
The problem with this feature might be that we don't know when the users will be closing the tab/stop looking at the work. They might have the tab open, but they went somewhere else. In this case, perhaps the best strategy is to track when they are clicking on the particular solutions.

Does this feature solve an existing problem
Currently, we don't know when the participants are clicking on others' work.

Does this the solution you'd like
Ideally, we know how long the participants are opening up the work.

Describe alternatives you've considered
Alternatively, there can be an alternative column in the database that tells how long the participant is staying on that piece of work before clicking on the next work.

Additional context
This idea was discussed during the meeting with Prof. Sun.

[jialincheoh]

@ManthanKeim , can you respond to this issue? @sbrunswi do you agree with the above?