Add support for dynamic schemas with date range filters

What does this MR do and why?

This MR updates the date range filter mapping logic so we can support dynamic schemas (such as funnels or custom events). In the event that our map doesn't find a matching table name, it will fall back to using the date field rather than a bespoke field for the table. We control the schema structure for dynamic schemas, so we can easily enforce the date field requirement. We already do so for funnels.

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Screenshots or screen recordings

Before	After

How to set up and validate locally

1. Enable Product analytics on your GDK by following the instructions.
2. Navigate to Project > Analytics > Analytics dashboards and set up product analytics.
3. Navigate to Project > Analytics > Analytics dashboards and click on the alert CTA to enable custom dashboards.
4. Create a new funnel. As an example:

   # .gitlab/analytics/funnels/dashboard_usage.yaml
   name: Dashboard Usage
   seconds_to_convert: 3600
   steps:
   - name: view_dashboards_list
     target: '/gitlab-org/gdk-tracking/-/analytics/dashboards'
     action: 'pageview'
   - name: view_all_the_things_dashboard
     target: '/gitlab-org/gdk-tracking/-/analytics/dashboards/all_the_things'
     action: 'pageview'

5. Create a visualization using the new funnel. As an example:

   # .gitlab/analytics/dashboards/visualizations/funnel_test.yaml
   version: 1
   type: ColumnChart
   data:
     type: cube_analytics
     query:
       measures:
       - dashboard_usage.count
       dimensions:
       - dashboard_usage.step
       limit: 100
       timezone: UTC
       timeDimensions: []
   options:
     xAxis:
       name: Step
       type: category
     yAxis:
       name: Total
       type: value

6. Create or add your new visualization to a custom dashboard.
7. Verify that the visualization renders and supports changing the date range.

Related to #437644 (closed)