feat: add session dimensions and allow overview filters

[lricoy]

This PR enables bounce-rate calculations filtering and filtering the WebOverview tiles.

Problem

We don't have a reliable way to average over session properties. To make the overview filters work on the non-preaggregated version, we filter the events we care about before aggregating. This is not possible on pre-aggregated tables since we are, well, pre-aggregating them; therefore, we need to do it in a way that allows future filters to query arbitrary sections of the data.

This PR enables this by adding session dimensions (essentially the entry values of the session) to the web_bounces_daily table, which is the table used for displaying bounce rates.

This allowed us only to need two tables at the end:

• web_stats_daily, which will have a more event-based breakdown.
• web_bounces_daily, which has session-oriented dimensions and bounce rate calculations.

The main difference between them is that web_stats_daily will have metrics for pathnames events, while web_bounces_daily doesn't, but has metrics like session_duration.

P.S. The names are still temporary, but the queries to generate those others are heavy, so I am trying to squish as much as possible from the ones we can have while keeping a close eye that we're not duplicating session data on web_bounces_daily.

Changes

• Removed web_paths_daily as we can now use the web_stats_daily for that
• Removed web_overview_daily as we can now use web_bounces_daily for bounce and session-dimensions filters
• Enabled the dimensions as filters on the WebOverview query

Did you write or update any docs for this change?

• I've added or updated the docs
• I've reached out for help from the docs team
• No docs needed for this change

How did you test this code?

Manually, basically if the pre-aggregated values matched the regular queries :)

[greptile-apps]

PR Summary

This PR optimizes web analytics pre-aggregation by consolidating tables and adding session dimensions for enhanced filtering capabilities.

• Consolidates four tables into two: web_stats_daily (event-based) and web_bounces_daily (session-oriented), removing web_overview_daily and web_paths_daily
• Adds session dimensions (browser, OS, viewport, UTM params) to web_bounces_daily for granular filtering
• Splits viewport field into width/height components in pre-aggregated tables
• Updates Dagster pipeline definitions to reflect table consolidation
• Implements pathname filtering workaround by mapping to entry_pathname in WebOverview queries

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[lricoy]

There were some conflicts with the Path Cleaning. I've fixed them, and it should be fine, but I will check the CI results to be sure

[jabahamondes]

LGTM 🫡