RUN-2321-Feat/unit test for activity running indicator

[jayas006]

Is this a bugfix, or an enhancement? Please describe.
This is an enhancement

Describe the solution you've implemented

• Verifying that the component renders correctly when the count is 0.
• Checking that the component renders and displays the correct count when the count is greater than 0.
• Ensuring that the count updates correctly when the updateNowrunning method is called.
• Confirming that the component emits the activity-nowrunning-click-action event when clicked.
• Checking that the component registers the activity-nowrunning-count event on mount.
  -Ensuring that the component unregisters the activity-nowrunning-count event on unmount.

Describe alternatives you've considered

Additional context
These unit tests were created to improve the reliability and maintainability of the ActivityRunningIndicator.vue component by automating the verification of its key behaviors. This helps ensure that the component works as expected and reduces the risk of introducing bugs when making changes to the component in the future.