Enable attachments sorting & filtering on the main thumbnails page.

Background Notes:

      Currently, different encounters are created for photos even if they are uploaded together. This makes the organization of photos difficult.

     Moreover, the encounters created are sorted by date descending instead, the sorting must be users choice.

Developer Notes:

    1)  When more than one photos are uploaded at the same time they are displayed under different encounters which should not be the case. 

     Photos uploaded in one encounter must be under one encounter, as it is more convenient and gives a better understanding. 

   A user must be able to create encounters as he wishes.

 2) These encounters must have a sorting option. 

       The options must be;

       a) Date Ascending and Descending.

       b) Name Ascending and Descending.

Acceptance Criteria:

     On clicking on visit documents the different encounters must be seen. To the top right corner, there must be sorting option and the encounters must be modified accordingly.