umami Additional Filters Functionality

Describe the feature or enhancement

It would be convenient if we could filter by all of the fields that are available, and if those filters could use regular expressions so that they could match on multiple values. For example, we can filter on most of the categories but not on languages, screens, events, or query parameters:

Specifically, it would be good if we could filter on an individual query parameter (for example, utm_campaign=survey in my screenshot above) or based on a key being set for a query parameter (for example, key in my example above, but matching any value.)

So, for languages, screens, and events, each could be made clickable and filterable similar to pages, referrers, browsers, etc. Then for query parameters, you could make the key clickable to filter any visitors where that parameter exists, or click on the individual value to filter by that parameter existing and it being equal to that specific value.

And even more ideally, there'd be a way to use a wildcard on any field, such that you could filter for specific items, perhaps by clicking on the filter criteria and editing it there rather than closing it? (The "X" would still remove that criteria.)