Add descriptions instead of activity name in budget visualization

[yprabhu]

Refer https://docs.google.com/spreadsheets/d/1EX3MFDfOLbzc4AHdC1OJ4IZCkREENpoJ-QdHGzUBNXw/edit?usp=sharing

Example:
Activity Name: NON TEACHING ASSISTANTS
Description: Non Teaching Assistants (NTAs) provide valuable classroom assistance to teachers

cc @lillixia