Foreign Key Editor usability

Selecting the referenced table for a FK gets cumbersome when there are a lot of tables. If I'm lucky the table name is unique enough that I can type the first letters after opening the _select table_ input and the right table gets selected, but this does not always work.

A (fuzzy) search filed would help a lot. I currently have 400+ tables in 40+ schemata and scrolling through the complete list looking for the right table is not the best.

Start at the Foreign Key Editor and inspect the select table input used when choosing a referenced table. Verify how selection behaves with many tables and schemas. Done means users can search, including with fuzzy text, and select the intended referenced table without scrolling through the full list.

Written by the indexing model from the issue text.