Add Usage Ping tracking for Web Terminal and Pipelines in Web IDE

Problem to Solve

We currently don't have good tracking information on aggregate usage information for the Web IDE Web Terminal or the Pipelines view in the Web IDE. This makes it harder to make informed decisions about these features.

Additional Details

We've previously done this for other features in the Web IDE as redis counters, which should be sufficient for this.

NOTE: This will also require an additional MR to the version.gitlab.com project so that it can properly receive the data.

Proposal

Tracking should be implemented to increment a counter each time the pipelines tab is opened and each time the Web IDE Terminal is opened.