Table Results Show up as Black Until Clicked On

## What did you do?

- Intermittently, when I click on a table to inspect the first 1000 rows, the results set will be covered by black. It looks like this:

- If I click on the rows or reload, the black will go away but will often reappear. This is pretty annoying.

## What did you expect to happen?

- I expected to just see the results rendered. This issue has not affected me until recently, although I cannot report an exact version number where it started to happen.

## What software versions are you using?

Postico version:
Version 1.5.13 (6491)

macOS version:
10.15.4

PostgreSQL version:
Happens across multiple databases. The issue also seems to be a GUI issue and not really related to the query engine or that interface.

Reproduce the black table-results display in Postico 1.5.13 on macOS 10.15.4 while inspecting the first 1000 rows across multiple databases. Start from the table inspection/results view and determine when the results become visible; done means the rows render normally without requiring clicks or reloads.

Written by the indexing model from the issue text.