Get topics that matches conditions

Service that returns the topics that meet the conditions established.

Form to configure has the following fields:

• Select topics in categories - Textfield to introduce categories, it accepts multiple values.
• Select topics in statuses - Textfield to introduce statuses, it accepts multiple values.
• User assigned to topics - Textfield to introduce Any/Current option for topics pertaining to one/multiple users.
• Advanced JSON/MongoDB condition for filter - Textfield to introduce a filter, for example: {"created_by": "user"}.