Search Test Case page: Categories to filter should be sorted in Alphabetical order, it's easier for finding the desired item.

[khang-brtsys]

Is your feature request related to a problem? Please describe.
When the list of Categories are long, it's hard to find the item when it's NOT sorting in ALPHABETICAL order.

Describe the solution you'd like
Sorting the Category items in ALPHABETICAL order in Search Test Case page, Filtering section.