renamed as the functionality being tested is contained within the VisProgStores.tsx file and thus the filename for the tests should reflect that relation, so order is preserved in the project.
also added a second describe layer to group the tests for all FlowStore functions together for organisational purposes.
ref: N25B-114
also added an example test for the counter in the components.tsx file to demonstrate functionality of testing configuration. installed all dependencies for testing using --save-dev to make sure they are stored as dev dependencies
ref: N25B-212
