Problem
When the users investigate cases, they need to click on each of the UICs of the accounts to see if there is an account that is in more than 1 SI case already. This would essentially help speed up the investigation. If there exist earlier identical cases, checkusers duplicate their efforts by checking the account data again, even if they don't need to.
Solution
Add an indication that ther have been other open or closed SI cases about the listed account. At the case level, show the number of related (identical) cases.
Acceptance criteria
- Next to the user in cases show X SI cases, where X is the total number of SI cases the user is in.
- This should be a link, leading to SuggestedInvestigations filtered by the user name
- Show this link if X >= 2
- The new elements should be displayed both on the main page and details page
- Cases are considered related if they refer to the same set of users and intersection of their signals is non-empty.
- If there are cases related to the current one, display Y related cases below the signal name in the metadata line (for now this text will be unlinked).
