[Bug] Filter by "IMPORTED" does not work

[Litie78]

Request Type

Bug

Work Environment

Question	Answer
OS version (server)	RedHat 7.9
TheHive version / git hash	4.1.0-1
Package Type	RPM
Browser type & version	Google Chrome Version 89.0.4389.90

Problem Description

Filter by "IMPORTED" does not work. It does not matter if you click on "YES|NO|ANY", the filter will always print the full list of alerts.

Steps to Reproduce

1. Import same Alerts into CASE;
2. Filter by "IMPORTED=NO"
3. The filter will print both imported and not imported alerts

Possible Solutions

If "IMPORTED=NO", print "not imported" Alerts;
If "IMPORTED=YES", print only "imported" Alerts;