UI improvements for automations and entities

First off, thanks to the developers for their hard work. Some ideas:

1. Customizing columns in UI
Automation descriptions are not shown next to automation names in the UI. There is a lot of dead space (see below). I request adding an option to customize columns shown and the ability to adjust their width.

2. Filtering entities
We can filter entities by integration if you go to your integrations and click on the entities (like this Caseta one):
image

But, we cannot do this via the entities tab (homeassistantURL.com/config/entities/). We can filter by status (disabled, hidden), but we cannot filter by integration or area via the UI. I request adding an option to the filter below (on the entities tab) to allow filtering by integration or area: