Add filter by properties

[vitonsky]

I explore the solutions to measure user metrics in my app and I found that rybbit is better than Plausible in few aspects, but it have no filter by properties that even plausible have.

Filter by properties is super important to analyze data.

Specific example of my use case. I want to know how many times user perform search for more than 3 chars and when exactly it happens.

Ideal pipeline is

1. Filter out events by name Search for notes
2. Filter out events by property searchTermLen >= 3
3. Find a 90 percentile for property sessionTime to understand typical time when users in current cohort hit for search

As I see, currently I can't do even step 2. Because there are no options to filter by properties at all.

Also i see there are only most trivial string operators

Step 3 is not possible at all, that make me think "should I implement analytics myself, or at least use Grafana?". This thoughts frighten me a little.

Rybbit in geleral looks fine, so let's stop this loop where we as developers re-implement the same features again and again in new products.

Add filters for properties to a rybbit. For your product it would look like a competitive advantage.