[UX] Group filters by input type (specific first, variable second)?

[Poitrin]

Is your feature request related to a problem? Please describe.
Question extracted from #669
Example: {{ 42 | █
Shall we display filters with input type number first, and filters with input type variable second?
Or does this confuse the developer, when filters are actually not sorted alphabetically?

Describe the solution you'd like
I want to have a solution which provides the best DX.

Describe alternatives you've considered

• Keep the current implementation.
• Sort by relevance descending (whatever this means, and however this can be found out).

Additional context
Current implementation