Copy/paste generated filter query

[bart-schaefer]

Often after constructing a filter in the table data view, I'd like to execute the same query in a SQL tab so that I can change the set of output columns or add a more complex ORDER BY.

Describe the solution you'd like
Add an option to copy the query to the clipboard. Possibly on the EXPORT menu, similar to exporting the data as SQL insert, export the query as a SQL statement? Or just a copy button somewhere.

Additional context
This would be even more useful if it were possible to filter with a tree of AND and OR clauses instead of just a flat series of AND, but that's a whole other thing.

[bart-schaefer]

This could also be an alternate solution for #381