Fixes and changes for the data dashboard backend

[caiosba]

Description

Some fixes and changes for the data dashboard backend:

• CV2-5812: Expand the "matched media" data point to include all tipline request types.
• CV2-5813: Use the default language when an explainer is created without language (includes migration rake task).
• CV2-5842: Use updated_at instead of created_at for article tags analytics.
• CV2-5835: For messages analytics, include only the states sent and received.
• CV2-5836: Use the top_media_tags method from CheckDataPoints lib in the TeamStatistics lib.

How has this been tested?

Existing tests were updated to cover the changes.

Checklist

• I have performed a self-review of my own code
• I have added unit and feature tests, if the PR implements a new feature or otherwise would benefit from additional testing
• I have added regression tests, if the PR fixes a bug
• I have added logging, exception reporting, and custom tracing with any additional information required for debugging
• I considered secure coding practices when writing this code. Any security concerns are noted above.
• I have commented my code in hard-to-understand areas, if any
• I have made needed changes to the README
• My changes generate no new warnings
• If I added a third party module, I included a rationale for doing so and followed our current guidelines

[melsawy]

A minor adjustment regarding the rake task to improve execution time

[melsawy]

I recommend implementing a loop based on teams, where each team will have a single query to update the Explainer with a nil value and retrieve the language only once.

[caiosba]

@melsawy , I left it that way because on live there are just around 200 cases... do you think the change is still needed?

[melsawy]

No, I thought we had many explainers on live