Move Activity Dashboard from prototype to release

[gycgabriel]

Currently, WATcher has an Activity Dashboard, but it is hidden as it is not yet ready.

Let's bring this feature to WATcher.

• Improve design of Activity Dashboard to match Issue Viewer
• Hide ID column of events
• Improve Date Selector

[damithc]

Let's keep improving the feature, but also keep it hidden until we are sure it is ready.

[gycgabriel]

@MadLamprey

1. How is it intended to be accessed - as a button on the Issues Dashboard or some other way?

There was a drop down on the top left for changing from issue to activity, similar to how we change phases in CATcher when we have multiple phases available in development mode.

2. As for the points mentioned in the issue, what has to be improved in the Date selector?

Ircc, current date selector uses two individual date pickers to filter, there is a date picker for a range, but this needs investigation if it is viable to be replaced with that.