[TASK] Create metric for `Traffic vs Conversions` metric

[jcastro-dotcms]

Description

IMPORTANT! New Implementation

This metric will be the graphic representation of the data retrieved here:

• [TASK] Create metric for Unique Visitors Who Converted #33870

As per confirmation from Freddy Montes, the metric as described below will NOT be implemented that way.

Implement the Traffic vs Conversions metric that will display:

1. The total number of pages that are viewed by users.
2. The conversion rate, which is made up of the Converting Unique Visitors divided by the Total Unique Visitors.
3. Grouped by the selected date range.

Here's an example of what that metric would look like:

Acceptance Criteria

• Determine the correct SQL and/or CubeJS query we need for it.
• Test it for different Sites and time ranges.
• Try to test the performance of such a query as much as possible.

Priority

High

Additional Context

No response