[Dashboard] Dashboard Filters on Task cards

[mahalakshme]

As is:

Currently address filters works for tasks which have subject id associated. And If subject is not present for a task entry, when filtered by location that entry will not appear in filter results.

AC:

• Applicable for all task type cards - Tasks, Call tasks and Open Subject tasks
• Add filters for subject type, program and encounter type in App designer on report_card like done for previous standard report card types
• Should be able to select any colour for the report card and it should get applied.
• Apply all filters(subject type and custom filters) only for tasks where subject_id is present in the database. For others it is not relevant.
• Entries not associated with subject_id should not appear on filter results since not relevant for the kind of filters we have currently.
• Eg: When program p and program encounter e filters applied,
  'Tasks' card need to show individuals enrolled in p and having encounter e(completed or scheduled) and having tasks associated with them(via subject_id)

Context:

• Tasks of open subject task type will have subject_id associated.
• Currently in prod there are no such tasks, though present in staging
• But it is good to handle the filters for these cards as well for consistency reasons.